From 861e10be08c69808065d755d3e3cab5d520a2d32 Mon Sep 17 00:00:00 2001 From: Cody P Schafer Date: Thu, 14 Mar 2013 15:27:51 -0700 Subject: perf tools: Fix build on non-glibc systems due to libio.h absence Including libio.h causes build failures on uClibc systems (which lack libio.h). It appears that libio.h was only included to pull in a definition for NULL, so it has been replaced by stddef.h. On powerpc, libio.h was conditionally included, but could be removed completely as it is unneeded. Also, the included of stdlib.h was changed to stddef.h (as again, only NULL is needed). Signed-off-by: Cody P Schafer Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363300074-26288-1-git-send-email-cody@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/arm/util/dwarf-regs.c | 5 +---- tools/perf/arch/powerpc/util/dwarf-regs.c | 5 +---- tools/perf/arch/s390/util/dwarf-regs.c | 2 +- tools/perf/arch/sh/util/dwarf-regs.c | 2 +- tools/perf/arch/sparc/util/dwarf-regs.c | 2 +- tools/perf/arch/x86/util/dwarf-regs.c | 2 +- 6 files changed, 6 insertions(+), 12 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/arch/arm/util/dwarf-regs.c b/tools/perf/arch/arm/util/dwarf-regs.c index e8d5c551c69c..33ec5b339da8 100644 --- a/tools/perf/arch/arm/util/dwarf-regs.c +++ b/tools/perf/arch/arm/util/dwarf-regs.c @@ -8,10 +8,7 @@ * published by the Free Software Foundation. */ -#include -#ifndef __UCLIBC__ -#include -#endif +#include #include struct pt_regs_dwarfnum { diff --git a/tools/perf/arch/powerpc/util/dwarf-regs.c b/tools/perf/arch/powerpc/util/dwarf-regs.c index 7cdd61d0e27c..733151cdf46e 100644 --- a/tools/perf/arch/powerpc/util/dwarf-regs.c +++ b/tools/perf/arch/powerpc/util/dwarf-regs.c @@ -9,10 +9,7 @@ * 2 of the License, or (at your option) any later version. */ -#include -#ifndef __UCLIBC__ -#include -#endif +#include #include diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c index e19653e025fa..0469df02ee62 100644 --- a/tools/perf/arch/s390/util/dwarf-regs.c +++ b/tools/perf/arch/s390/util/dwarf-regs.c @@ -6,7 +6,7 @@ * */ -#include +#include #include #define NUM_GPRS 16 diff --git a/tools/perf/arch/sh/util/dwarf-regs.c b/tools/perf/arch/sh/util/dwarf-regs.c index a11edb007a6c..0d0897f57a10 100644 --- a/tools/perf/arch/sh/util/dwarf-regs.c +++ b/tools/perf/arch/sh/util/dwarf-regs.c @@ -19,7 +19,7 @@ * */ -#include +#include #include /* diff --git a/tools/perf/arch/sparc/util/dwarf-regs.c b/tools/perf/arch/sparc/util/dwarf-regs.c index 0ab88483720c..92eda412fed3 100644 --- a/tools/perf/arch/sparc/util/dwarf-regs.c +++ b/tools/perf/arch/sparc/util/dwarf-regs.c @@ -9,7 +9,7 @@ * 2 of the License, or (at your option) any later version. */ -#include +#include #include #define SPARC_MAX_REGS 96 diff --git a/tools/perf/arch/x86/util/dwarf-regs.c b/tools/perf/arch/x86/util/dwarf-regs.c index a794d3081928..be22dd463232 100644 --- a/tools/perf/arch/x86/util/dwarf-regs.c +++ b/tools/perf/arch/x86/util/dwarf-regs.c @@ -20,7 +20,7 @@ * */ -#include +#include #include /* -- cgit v1.2.3 From fed1208841f5db92cc3bede4b1004e9e986d843e Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 20 Feb 2013 16:32:27 +0100 Subject: perf tools: Remove a write-only variable in the debugfs code debugfs_premounted is written-to only so drop it. This functionality is covered by debugfs_found now. Make it a bool while at it. Signed-off-by: Borislav Petkov Cc: Ingo Molnar Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1361374353-30385-2-git-send-email-bp@alien8.de Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/debugfs.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c index dd8b19319c03..e55495c7823a 100644 --- a/tools/perf/util/debugfs.c +++ b/tools/perf/util/debugfs.c @@ -5,7 +5,6 @@ #include #include -static int debugfs_premounted; char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug"; char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; @@ -15,7 +14,7 @@ static const char *debugfs_known_mountpoints[] = { 0, }; -static int debugfs_found; +static bool debugfs_found; /* find the path to the mounted debugfs */ const char *debugfs_find_mountpoint(void) @@ -30,7 +29,7 @@ const char *debugfs_find_mountpoint(void) ptr = debugfs_known_mountpoints; while (*ptr) { if (debugfs_valid_mountpoint(*ptr) == 0) { - debugfs_found = 1; + debugfs_found = true; strcpy(debugfs_mountpoint, *ptr); return debugfs_mountpoint; } @@ -52,7 +51,7 @@ const char *debugfs_find_mountpoint(void) if (strcmp(type, "debugfs") != 0) return NULL; - debugfs_found = 1; + debugfs_found = true; return debugfs_mountpoint; } @@ -82,10 +81,8 @@ static void debugfs_set_tracing_events_path(const char *mountpoint) char *debugfs_mount(const char *mountpoint) { /* see if it's already mounted */ - if (debugfs_find_mountpoint()) { - debugfs_premounted = 1; + if (debugfs_find_mountpoint()) goto out; - } /* if not mounted and no argument */ if (mountpoint == NULL) { @@ -100,7 +97,7 @@ char *debugfs_mount(const char *mountpoint) return NULL; /* save the mountpoint */ - debugfs_found = 1; + debugfs_found = true; strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint)); out: debugfs_set_tracing_events_path(debugfs_mountpoint); -- cgit v1.2.3 From 66857b5a8bc61b0c5e7a9c96f02558ef6d4109c6 Mon Sep 17 00:00:00 2001 From: liguang Date: Tue, 26 Feb 2013 12:12:52 +0800 Subject: perf tools: Sort command-list.txt alphabetically Signed-off-by: liguang Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1361851974-25307-1-git-send-email-lig.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/command-list.txt | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt index 3e86bbd8c2d5..a28e31be6cb4 100644 --- a/tools/perf/command-list.txt +++ b/tools/perf/command-list.txt @@ -10,17 +10,17 @@ perf-buildid-list mainporcelain common perf-diff mainporcelain common perf-evlist mainporcelain common perf-inject mainporcelain common +perf-kmem mainporcelain common +perf-kvm mainporcelain common perf-list mainporcelain common -perf-sched mainporcelain common +perf-lock mainporcelain common +perf-probe mainporcelain full perf-record mainporcelain common perf-report mainporcelain common +perf-sched mainporcelain common +perf-script mainporcelain common perf-stat mainporcelain common +perf-test mainporcelain common perf-timechart mainporcelain common perf-top mainporcelain common perf-trace mainporcelain common -perf-script mainporcelain common -perf-probe mainporcelain full -perf-kmem mainporcelain common -perf-lock mainporcelain common -perf-kvm mainporcelain common -perf-test mainporcelain common -- cgit v1.2.3 From 097c87582c5719adbd8b700f4250e1f1d9f15ebf Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 25 Feb 2013 10:52:49 +0100 Subject: perf tests: Make attr script verbose friendly Making the attr test script runner to pass proper verbose option. Also making single '-v' be more reader friendly and display just the test name. Making the current output to be display for '-vv'. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1361785972-7431-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/attr.c | 9 +++++++-- tools/perf/tests/attr.py | 4 ++-- 2 files changed, 9 insertions(+), 4 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c index bdcceb886f77..038de3ecb8cb 100644 --- a/tools/perf/tests/attr.c +++ b/tools/perf/tests/attr.c @@ -147,10 +147,15 @@ void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu, static int run_dir(const char *d, const char *perf) { + char v[] = "-vvvvv"; + int vcnt = min(verbose, (int) sizeof(v) - 1); char cmd[3*PATH_MAX]; - snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %s", - d, d, perf, verbose ? "-v" : ""); + if (verbose) + vcnt++; + + snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %.*s", + d, d, perf, vcnt, v); return system(cmd); } diff --git a/tools/perf/tests/attr.py b/tools/perf/tests/attr.py index 2f629ca485bc..e0ea51335e9c 100644 --- a/tools/perf/tests/attr.py +++ b/tools/perf/tests/attr.py @@ -121,7 +121,7 @@ class Test(object): parser = ConfigParser.SafeConfigParser() parser.read(path) - log.debug("running '%s'" % path) + log.warning("running '%s'" % path) self.path = path self.test_dir = options.test_dir @@ -172,7 +172,7 @@ class Test(object): self.perf, self.command, tempdir, self.args) ret = os.WEXITSTATUS(os.system(cmd)) - log.warning(" running '%s' ret %d " % (cmd, ret)) + log.info(" '%s' ret %d " % (cmd, ret)) if ret != int(self.ret): raise Unsup(self) -- cgit v1.2.3 From c21d0030cfe17d87f8ad80a4205c8203bdb3949b Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 25 Feb 2013 10:52:50 +0100 Subject: perf tests: Make attr script test event cpu Make attr script to check for 'cpu' when testing event properties. This will allow us to check the '-C X' option for both record and stat commands. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1361785972-7431-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/attr.py | 1 + tools/perf/tests/attr/base-record | 1 + tools/perf/tests/attr/base-stat | 1 + 3 files changed, 3 insertions(+) (limited to 'tools/perf') diff --git a/tools/perf/tests/attr.py b/tools/perf/tests/attr.py index e0ea51335e9c..c9b4b6269b51 100644 --- a/tools/perf/tests/attr.py +++ b/tools/perf/tests/attr.py @@ -24,6 +24,7 @@ class Unsup(Exception): class Event(dict): terms = [ + 'cpu', 'flags', 'type', 'size', diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record index 5bc3880f7be5..b4fc835de607 100644 --- a/tools/perf/tests/attr/base-record +++ b/tools/perf/tests/attr/base-record @@ -2,6 +2,7 @@ fd=1 group_fd=-1 flags=0 +cpu=* type=0|1 size=96 config=0 diff --git a/tools/perf/tests/attr/base-stat b/tools/perf/tests/attr/base-stat index 4bd79a82784f..748ee949a204 100644 --- a/tools/perf/tests/attr/base-stat +++ b/tools/perf/tests/attr/base-stat @@ -2,6 +2,7 @@ fd=1 group_fd=-1 flags=0 +cpu=* type=0 size=96 config=0 -- cgit v1.2.3 From b03ec1b53070e0fae9de72b584d94b65a4a97635 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 25 Feb 2013 10:52:51 +0100 Subject: perf tests: Add attr record -C cpu test Adding test to validate perf_event_attr data for command: 'record -C 0' Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1361785972-7431-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/attr/test-record-C0 | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 tools/perf/tests/attr/test-record-C0 (limited to 'tools/perf') diff --git a/tools/perf/tests/attr/test-record-C0 b/tools/perf/tests/attr/test-record-C0 new file mode 100644 index 000000000000..d6a7e43f61b3 --- /dev/null +++ b/tools/perf/tests/attr/test-record-C0 @@ -0,0 +1,13 @@ +[config] +command = record +args = -C 0 kill >/dev/null 2>&1 + +[event:base-record] +cpu=0 + +# no enable on exec for CPU attached +enable_on_exec=0 + +# PERF_SAMPLE_IP | PERF_SAMPLE_TID PERF_SAMPLE_TIME | # PERF_SAMPLE_PERIOD +# + PERF_SAMPLE_CPU added by -C 0 +sample_type=391 -- cgit v1.2.3 From 9687b89d21999301ed386855c04b60d00ed1ec02 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 25 Feb 2013 10:52:52 +0100 Subject: perf tests: Add attr stat -C cpu test Adding test to validate perf_event_attr data for command: 'stat -C 0' Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1361785972-7431-6-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/attr/test-stat-C0 | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 tools/perf/tests/attr/test-stat-C0 (limited to 'tools/perf') diff --git a/tools/perf/tests/attr/test-stat-C0 b/tools/perf/tests/attr/test-stat-C0 new file mode 100644 index 000000000000..aa835950751f --- /dev/null +++ b/tools/perf/tests/attr/test-stat-C0 @@ -0,0 +1,9 @@ +[config] +command = stat +args = -e cycles -C 0 kill >/dev/null 2>&1 +ret = 1 + +[event:base-stat] +# events are enabled by default when attached to cpu +disabled=0 +enable_on_exec=0 -- cgit v1.2.3 From 85c66be101e1847f0eb46dcb48d5738572129694 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 20 Feb 2013 16:32:30 +0100 Subject: perf tools: Introduce tools/lib/lk library This introduces the tools/lib/lk library, that will gradually have the routines that now are used in tools/perf/ and other tools and that can be shared. Start by carving out debugfs routines for general use. Signed-off-by: Borislav Petkov Cc: Ingo Molnar Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1361374353-30385-5-git-send-email-bp@alien8.de [ committer note: Add tools/lib/lk/ to perf's MANIFEST so that its tarballs continue to build ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/MANIFEST | 1 + tools/perf/Makefile | 34 +++++++++--- tools/perf/builtin-kvm.c | 2 +- tools/perf/builtin-probe.c | 2 +- tools/perf/perf.c | 2 +- tools/perf/tests/parse-events.c | 2 +- tools/perf/util/debugfs.c | 111 ------------------------------------- tools/perf/util/debugfs.h | 12 ---- tools/perf/util/evlist.c | 2 +- tools/perf/util/evsel.c | 2 +- tools/perf/util/parse-events.c | 2 +- tools/perf/util/probe-event.c | 2 +- tools/perf/util/python-ext-sources | 1 - tools/perf/util/setup.py | 3 +- tools/perf/util/trace-event-info.c | 2 +- 15 files changed, 39 insertions(+), 141 deletions(-) delete mode 100644 tools/perf/util/debugfs.c delete mode 100644 tools/perf/util/debugfs.h (limited to 'tools/perf') diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 39d41068484f..025de796067c 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -1,6 +1,7 @@ tools/perf tools/scripts tools/lib/traceevent +tools/lib/lk include/linux/const.h include/linux/perf_event.h include/linux/rbtree.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index bb74c79cd16e..3dcd6273a90b 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -215,6 +215,7 @@ BASIC_CFLAGS = \ -Iutil \ -I. \ -I$(TRACE_EVENT_DIR) \ + -I../lib/ \ -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE BASIC_LDFLAGS = @@ -240,19 +241,28 @@ SCRIPT_SH += perf-archive.sh grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) +LK_DIR = ../lib/lk/ TRACE_EVENT_DIR = ../lib/traceevent/ +LK_PATH=$(LK_DIR) + ifneq ($(OUTPUT),) TE_PATH=$(OUTPUT) +ifneq ($(subdir),) + LK_PATH=$(OUTPUT)$(LK_DIR) +else + LK_PATH=$(OUTPUT) +endif else TE_PATH=$(TRACE_EVENT_DIR) endif LIBTRACEEVENT = $(TE_PATH)libtraceevent.a -TE_LIB := -L$(TE_PATH) -ltraceevent - export LIBTRACEEVENT +LIBLK = $(LK_PATH)liblk.a +export LIBLK + # python extension build directories PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/ @@ -355,7 +365,6 @@ LIB_H += util/cache.h LIB_H += util/callchain.h LIB_H += util/build-id.h LIB_H += util/debug.h -LIB_H += util/debugfs.h LIB_H += util/sysfs.h LIB_H += util/pmu.h LIB_H += util/event.h @@ -416,7 +425,6 @@ LIB_OBJS += $(OUTPUT)util/annotate.o LIB_OBJS += $(OUTPUT)util/build-id.o LIB_OBJS += $(OUTPUT)util/config.o LIB_OBJS += $(OUTPUT)util/ctype.o -LIB_OBJS += $(OUTPUT)util/debugfs.o LIB_OBJS += $(OUTPUT)util/sysfs.o LIB_OBJS += $(OUTPUT)util/pmu.o LIB_OBJS += $(OUTPUT)util/environment.o @@ -536,7 +544,7 @@ BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o BUILTIN_OBJS += $(OUTPUT)builtin-inject.o BUILTIN_OBJS += $(OUTPUT)tests/builtin-test.o -PERFLIBS = $(LIB_FILE) $(LIBTRACEEVENT) +PERFLIBS = $(LIB_FILE) $(LIBLK) $(LIBTRACEEVENT) # # Platform specific tweaks @@ -1051,6 +1059,18 @@ $(LIBTRACEEVENT): $(LIBTRACEEVENT)-clean: $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean +# if subdir is set, we've been called from above so target has been built +# already +$(LIBLK): +ifeq ($(subdir),) + $(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) liblk.a +endif + +$(LIBLK)-clean: +ifeq ($(subdir),) + $(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean +endif + help: @echo 'Perf make targets:' @echo ' doc - make *all* documentation (see below)' @@ -1171,7 +1191,7 @@ $(INSTALL_DOC_TARGETS): ### Cleaning rules -clean: $(LIBTRACEEVENT)-clean +clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS) $(RM) $(ALL_PROGRAMS) perf $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* @@ -1181,6 +1201,6 @@ clean: $(LIBTRACEEVENT)-clean $(RM) $(OUTPUT)util/*-flex* $(python-clean) -.PHONY: all install clean strip $(LIBTRACEEVENT) +.PHONY: all install clean strip $(LIBTRACEEVENT) $(LIBLK) .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell .PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 37a769d7f9fe..533501e2b07c 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -12,7 +12,7 @@ #include "util/parse-options.h" #include "util/trace-event.h" #include "util/debug.h" -#include "util/debugfs.h" +#include #include "util/tool.h" #include "util/stat.h" diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index de38a034b129..e8a66f9a6715 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -37,7 +37,7 @@ #include "util/strfilter.h" #include "util/symbol.h" #include "util/debug.h" -#include "util/debugfs.h" +#include #include "util/parse-options.h" #include "util/probe-finder.h" #include "util/probe-event.h" diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 095b88207cd3..f53b735e2822 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -13,7 +13,7 @@ #include "util/quote.h" #include "util/run-command.h" #include "util/parse-events.h" -#include "util/debugfs.h" +#include #include const char perf_usage_string[] = diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index c5636f36fe31..0d3d0c59f924 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -3,7 +3,7 @@ #include "evsel.h" #include "evlist.h" #include "sysfs.h" -#include "debugfs.h" +#include #include "tests.h" #include diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c deleted file mode 100644 index e55495c7823a..000000000000 --- a/tools/perf/util/debugfs.c +++ /dev/null @@ -1,111 +0,0 @@ -#include "util.h" -#include "debugfs.h" -#include "cache.h" - -#include -#include - -char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug"; -char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; - -static const char *debugfs_known_mountpoints[] = { - "/sys/kernel/debug/", - "/debug/", - 0, -}; - -static bool debugfs_found; - -/* find the path to the mounted debugfs */ -const char *debugfs_find_mountpoint(void) -{ - const char **ptr; - char type[100]; - FILE *fp; - - if (debugfs_found) - return (const char *) debugfs_mountpoint; - - ptr = debugfs_known_mountpoints; - while (*ptr) { - if (debugfs_valid_mountpoint(*ptr) == 0) { - debugfs_found = true; - strcpy(debugfs_mountpoint, *ptr); - return debugfs_mountpoint; - } - ptr++; - } - - /* give up and parse /proc/mounts */ - fp = fopen("/proc/mounts", "r"); - if (fp == NULL) - return NULL; - - while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n", - debugfs_mountpoint, type) == 2) { - if (strcmp(type, "debugfs") == 0) - break; - } - fclose(fp); - - if (strcmp(type, "debugfs") != 0) - return NULL; - - debugfs_found = true; - - return debugfs_mountpoint; -} - -/* verify that a mountpoint is actually a debugfs instance */ - -int debugfs_valid_mountpoint(const char *debugfs) -{ - struct statfs st_fs; - - if (statfs(debugfs, &st_fs) < 0) - return -ENOENT; - else if (st_fs.f_type != (long) DEBUGFS_MAGIC) - return -ENOENT; - - return 0; -} - -static void debugfs_set_tracing_events_path(const char *mountpoint) -{ - snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s", - mountpoint, "tracing/events"); -} - -/* mount the debugfs somewhere if it's not mounted */ - -char *debugfs_mount(const char *mountpoint) -{ - /* see if it's already mounted */ - if (debugfs_find_mountpoint()) - goto out; - - /* if not mounted and no argument */ - if (mountpoint == NULL) { - /* see if environment variable set */ - mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT); - /* if no environment variable, use default */ - if (mountpoint == NULL) - mountpoint = "/sys/kernel/debug"; - } - - if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0) - return NULL; - - /* save the mountpoint */ - debugfs_found = true; - strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint)); -out: - debugfs_set_tracing_events_path(debugfs_mountpoint); - return debugfs_mountpoint; -} - -void debugfs_set_path(const char *mountpoint) -{ - snprintf(debugfs_mountpoint, sizeof(debugfs_mountpoint), "%s", mountpoint); - debugfs_set_tracing_events_path(mountpoint); -} diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h deleted file mode 100644 index 68f3e87ec57f..000000000000 --- a/tools/perf/util/debugfs.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef __DEBUGFS_H__ -#define __DEBUGFS_H__ - -const char *debugfs_find_mountpoint(void); -int debugfs_valid_mountpoint(const char *debugfs); -char *debugfs_mount(const char *mountpoint); -void debugfs_set_path(const char *mountpoint); - -extern char debugfs_mountpoint[]; -extern char tracing_events_path[]; - -#endif /* __DEBUGFS_H__ */ diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index bc4ad7977438..7626bb49508d 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -7,7 +7,7 @@ * Released under the GPL v2. (and only v2, not any later version) */ #include "util.h" -#include "debugfs.h" +#include #include #include "cpumap.h" #include "thread_map.h" diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 9c82f98f26de..dc16231f7a5d 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -10,7 +10,7 @@ #include #include #include "asm/bug.h" -#include "debugfs.h" +#include #include "event-parse.h" #include "evsel.h" #include "evlist.h" diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index c84f48cf9678..6c8bb0fb189b 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -10,7 +10,7 @@ #include "symbol.h" #include "cache.h" #include "header.h" -#include "debugfs.h" +#include #include "parse-events-bison.h" #define YY_EXTRA_TYPE int #include "parse-events-flex.h" diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 49a256e6e0a2..aa04bf9c9ad7 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -40,7 +40,7 @@ #include "color.h" #include "symbol.h" #include "thread.h" -#include "debugfs.h" +#include #include "trace-event.h" /* For __maybe_unused */ #include "probe-event.h" #include "probe-finder.h" diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources index 64536a993f4a..f75ae1b9900c 100644 --- a/tools/perf/util/python-ext-sources +++ b/tools/perf/util/python-ext-sources @@ -15,7 +15,6 @@ util/thread_map.c util/util.c util/xyarray.c util/cgroup.c -util/debugfs.c util/rblist.c util/strlist.c util/sysfs.c diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py index 73d510269784..6b0ed322907e 100644 --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -24,6 +24,7 @@ cflags += getenv('CFLAGS', '').split() build_lib = getenv('PYTHON_EXTBUILD_LIB') build_tmp = getenv('PYTHON_EXTBUILD_TMP') libtraceevent = getenv('LIBTRACEEVENT') +liblk = getenv('LIBLK') ext_sources = [f.strip() for f in file('util/python-ext-sources') if len(f.strip()) > 0 and f[0] != '#'] @@ -32,7 +33,7 @@ perf = Extension('perf', sources = ext_sources, include_dirs = ['util/include'], extra_compile_args = cflags, - extra_objects = [libtraceevent], + extra_objects = [libtraceevent, liblk], ) setup(name='perf', diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index a8d81c35ef66..36b9b49d0177 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -38,7 +38,7 @@ #include "../perf.h" #include "trace-event.h" -#include "debugfs.h" +#include #include "evsel.h" #define VERSION "0.5" -- cgit v1.2.3 From 1355915ac626da30a0c02ccd4569c1e5ce2cbb82 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 20 Feb 2013 16:32:31 +0100 Subject: perf tools: Extract perf-specific stuff from debugfs.c Move them to util.c and simplify code a bit. Signed-off-by: Borislav Petkov Cc: Ingo Molnar Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1361374353-30385-6-git-send-email-bp@alien8.de Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf.c | 6 +++--- tools/perf/util/trace-event-info.c | 2 +- tools/perf/util/util.c | 27 +++++++++++++++++++++++++++ tools/perf/util/util.h | 7 +++++-- 4 files changed, 36 insertions(+), 6 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/perf.c b/tools/perf/perf.c index f53b735e2822..f6ba7b73f40e 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -193,13 +193,13 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) fprintf(stderr, "No directory given for --debugfs-dir.\n"); usage(perf_usage_string); } - debugfs_set_path((*argv)[1]); + perf_debugfs_set_path((*argv)[1]); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; } else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) { - debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR)); + perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR)); fprintf(stderr, "dir: %s\n", debugfs_mountpoint); if (envchanged) *envchanged = 1; @@ -461,7 +461,7 @@ int main(int argc, const char **argv) if (!cmd) cmd = "perf-help"; /* get debugfs mount point from /proc/mounts */ - debugfs_mount(NULL); + perf_debugfs_mount(NULL); /* * "perf-xxxx" is the same as "perf xxxx", but we obviously: * diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 36b9b49d0177..5c1509ab0c29 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -80,7 +80,7 @@ static void *malloc_or_die(unsigned int size) static const char *find_debugfs(void) { - const char *path = debugfs_mount(NULL); + const char *path = perf_debugfs_mount(NULL); if (!path) die("Your kernel not support debugfs filesystem"); diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 805d1f52c5b4..59d868add275 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -17,6 +17,8 @@ bool test_attr__enabled; bool perf_host = true; bool perf_guest = false; +char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; + void event_attr_init(struct perf_event_attr *attr) { if (!perf_host) @@ -242,3 +244,28 @@ void get_term_dimensions(struct winsize *ws) ws->ws_row = 25; ws->ws_col = 80; } + +static void set_tracing_events_path(const char *mountpoint) +{ + snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s", + mountpoint, "tracing/events"); +} + +const char *perf_debugfs_mount(const char *mountpoint) +{ + const char *mnt; + + mnt = debugfs_mount(mountpoint); + if (!mnt) + return NULL; + + set_tracing_events_path(mnt); + + return mnt; +} + +void perf_debugfs_set_path(const char *mntpt) +{ + snprintf(debugfs_mountpoint, strlen(debugfs_mountpoint), "%s", mntpt); + set_tracing_events_path(mntpt); +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 09b4c26b71aa..6a0781c3a573 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -73,10 +73,14 @@ #include #include "types.h" #include +#include extern const char *graph_line; extern const char *graph_dotted_line; extern char buildid_dir[]; +extern char tracing_events_path[]; +extern void perf_debugfs_set_path(const char *mountpoint); +const char *perf_debugfs_mount(const char *mountpoint); /* On most systems would have given us this, but * not on some systems (e.g. GNU/Hurd). @@ -274,5 +278,4 @@ extern unsigned int page_size; struct winsize; void get_term_dimensions(struct winsize *ws); - -#endif +#endif /* GIT_COMPAT_UTIL_H */ -- cgit v1.2.3 From 334fe7a3c63624eb1bba42f81eb088d5665d9f3e Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:12 +0900 Subject: perf evlist: Remove cpus and threads arguments from perf_evlist__new() It's almost always used with NULL for both arguments. Get rid of the arguments from the signature and use perf_evlist__set_maps() if needed. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-1-git-send-email-namhyung@kernel.org [ committer note: replaced spaces with tabs in some of the affected lines ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 2 +- tools/perf/builtin-stat.c | 2 +- tools/perf/builtin-top.c | 2 +- tools/perf/builtin-trace.c | 2 +- tools/perf/tests/evsel-roundtrip-name.c | 4 ++-- tools/perf/tests/hists_link.c | 2 +- tools/perf/tests/mmap-basic.c | 4 +++- tools/perf/tests/open-syscall-tp-fields.c | 2 +- tools/perf/tests/parse-events.c | 2 +- tools/perf/tests/perf-record.c | 2 +- tools/perf/util/evlist.c | 5 ++--- tools/perf/util/evlist.h | 3 +-- tools/perf/util/header.c | 4 ++-- 13 files changed, 18 insertions(+), 18 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f1a939ebc19c..e3261eae0ad7 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -964,7 +964,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) struct perf_record *rec = &record; char errbuf[BUFSIZ]; - evsel_list = perf_evlist__new(NULL, NULL); + evsel_list = perf_evlist__new(); if (evsel_list == NULL) return -ENOMEM; diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 99848761f573..020329dca005 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1336,7 +1336,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) setlocale(LC_ALL, ""); - evsel_list = perf_evlist__new(NULL, NULL); + evsel_list = perf_evlist__new(); if (evsel_list == NULL) return -ENOMEM; diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 72f6eb7b4173..c5601aa7a870 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1116,7 +1116,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) NULL }; - top.evlist = perf_evlist__new(NULL, NULL); + top.evlist = perf_evlist__new(); if (top.evlist == NULL) return -ENOMEM; diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index d222d7fc7e96..6198eb11e1c6 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -419,7 +419,7 @@ out_dump: static int trace__run(struct trace *trace, int argc, const char **argv) { - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); struct perf_evsel *evsel; int err = -1, i; unsigned long before; diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c index 0fd99a9adb91..0197bda9c461 100644 --- a/tools/perf/tests/evsel-roundtrip-name.c +++ b/tools/perf/tests/evsel-roundtrip-name.c @@ -8,7 +8,7 @@ static int perf_evsel__roundtrip_cache_name_test(void) char name[128]; int type, op, err = 0, ret = 0, i, idx; struct perf_evsel *evsel; - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; @@ -64,7 +64,7 @@ static int __perf_evsel__name_array_test(const char *names[], int nr_names) { int i, err; struct perf_evsel *evsel; - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c index 1be64a6c5daf..e0c0267858a1 100644 --- a/tools/perf/tests/hists_link.c +++ b/tools/perf/tests/hists_link.c @@ -436,7 +436,7 @@ int test__hists_link(void) struct machines machines; struct machine *machine = NULL; struct perf_evsel *evsel, *first; - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index cdd50755af51..5b1b5aba722b 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -53,12 +53,14 @@ int test__basic_mmap(void) goto out_free_cpus; } - evlist = perf_evlist__new(cpus, threads); + evlist = perf_evlist__new(); if (evlist == NULL) { pr_debug("perf_evlist__new\n"); goto out_free_cpus; } + perf_evlist__set_maps(evlist, cpus, threads); + for (i = 0; i < nsyscalls; ++i) { char name[64]; diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c index 1c52fdc1164e..02cb74174e23 100644 --- a/tools/perf/tests/open-syscall-tp-fields.c +++ b/tools/perf/tests/open-syscall-tp-fields.c @@ -18,7 +18,7 @@ int test__syscall_open_tp_fields(void) }; const char *filename = "/etc/passwd"; int flags = O_RDONLY | O_DIRECTORY; - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); struct perf_evsel *evsel; int err = -1, i, nr_events = 0, nr_polls = 0; diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 0d3d0c59f924..88e2f44cb157 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -1218,7 +1218,7 @@ static int test_event(struct evlist_test *e) struct perf_evlist *evlist; int ret; - evlist = perf_evlist__new(NULL, NULL); + evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index 1e8e5128d0da..f6ba75a983a8 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -45,7 +45,7 @@ int test__PERF_RECORD(void) }; cpu_set_t cpu_mask; size_t cpu_mask_size = sizeof(cpu_mask); - struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); + struct perf_evlist *evlist = perf_evlist__new(); struct perf_evsel *evsel; struct perf_sample sample; const char *cmd = "sleep"; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 7626bb49508d..a199f1887bef 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -38,13 +38,12 @@ void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, evlist->workload.pid = -1; } -struct perf_evlist *perf_evlist__new(struct cpu_map *cpus, - struct thread_map *threads) +struct perf_evlist *perf_evlist__new(void) { struct perf_evlist *evlist = zalloc(sizeof(*evlist)); if (evlist != NULL) - perf_evlist__init(evlist, cpus, threads); + perf_evlist__init(evlist, NULL, NULL); return evlist; } diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 2dd07bd60b4f..9a7b76e3a873 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -49,8 +49,7 @@ struct perf_evsel_str_handler { void *handler; }; -struct perf_evlist *perf_evlist__new(struct cpu_map *cpus, - struct thread_map *threads); +struct perf_evlist *perf_evlist__new(void); void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, struct thread_map *threads); void perf_evlist__exit(struct perf_evlist *evlist); diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index f4bfd79ef6a7..a9b7349f7c5f 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2789,7 +2789,7 @@ int perf_session__read_header(struct perf_session *session, int fd) u64 f_id; int nr_attrs, nr_ids, i, j; - session->evlist = perf_evlist__new(NULL, NULL); + session->evlist = perf_evlist__new(); if (session->evlist == NULL) return -ENOMEM; @@ -2940,7 +2940,7 @@ int perf_event__process_attr(union perf_event *event, struct perf_evlist *evlist = *pevlist; if (evlist == NULL) { - *pevlist = evlist = perf_evlist__new(NULL, NULL); + *pevlist = evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; } -- cgit v1.2.3 From 85397956de304106e2fdace2db8f69ab4e966bc5 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:13 +0900 Subject: perf evlist: Use cpu_map__nr() helper Use the cpu_map__nr() helper to protect a possible NULL cpu map dereference. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evlist.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a199f1887bef..a482547495b6 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -228,7 +228,7 @@ void perf_evlist__disable(struct perf_evlist *evlist) int cpu, thread; struct perf_evsel *pos; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { list_for_each_entry(pos, &evlist->entries, node) { if (!perf_evsel__is_group_leader(pos)) continue; @@ -443,7 +443,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m struct perf_evsel *evsel; int cpu, thread; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { int output = -1; for (thread = 0; thread < evlist->threads->nr; thread++) { @@ -470,7 +470,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m return 0; out_unmap: - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { if (evlist->mmap[cpu].base != NULL) { munmap(evlist->mmap[cpu].base, evlist->mmap_len); evlist->mmap[cpu].base = NULL; @@ -725,7 +725,7 @@ int perf_evlist__open(struct perf_evlist *evlist) return 0; out_err: - ncpus = evlist->cpus ? evlist->cpus->nr : 1; + ncpus = cpu_map__nr(evlist->cpus); nthreads = evlist->threads ? evlist->threads->nr : 1; list_for_each_entry_reverse(evsel, &evlist->entries, node) -- cgit v1.2.3 From b3a319d528fd57ef600731ee1b84d00b7204881d Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:14 +0900 Subject: perf evlist: Add thread_map__nr() helper Introduce and use the thread_map__nr() function to protect a possible NULL pointer dereference and cleanup the code a bit. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 4 ++-- tools/perf/util/evlist.c | 37 +++++++++++++++++++++++-------------- tools/perf/util/thread_map.h | 5 +++++ 3 files changed, 30 insertions(+), 16 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 020329dca005..20ffaf98782e 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -249,7 +249,7 @@ static int read_counter_aggr(struct perf_evsel *counter) int i; if (__perf_evsel__read(counter, perf_evsel__nr_cpus(counter), - evsel_list->threads->nr, scale) < 0) + thread_map__nr(evsel_list->threads), scale) < 0) return -1; for (i = 0; i < 3; i++) @@ -488,7 +488,7 @@ static int __run_perf_stat(int argc __maybe_unused, const char **argv) list_for_each_entry(counter, &evsel_list->entries, node) { read_counter_aggr(counter); perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), - evsel_list->threads->nr); + thread_map__nr(evsel_list->threads)); } } diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a482547495b6..7d71a691b864 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -227,12 +227,14 @@ void perf_evlist__disable(struct perf_evlist *evlist) { int cpu, thread; struct perf_evsel *pos; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = thread_map__nr(evlist->threads); - for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { list_for_each_entry(pos, &evlist->entries, node) { if (!perf_evsel__is_group_leader(pos)) continue; - for (thread = 0; thread < evlist->threads->nr; thread++) + for (thread = 0; thread < nr_threads; thread++) ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_DISABLE, 0); } @@ -243,12 +245,14 @@ void perf_evlist__enable(struct perf_evlist *evlist) { int cpu, thread; struct perf_evsel *pos; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = thread_map__nr(evlist->threads); - for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { list_for_each_entry(pos, &evlist->entries, node) { if (!perf_evsel__is_group_leader(pos)) continue; - for (thread = 0; thread < evlist->threads->nr; thread++) + for (thread = 0; thread < nr_threads; thread++) ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_ENABLE, 0); } @@ -257,7 +261,9 @@ void perf_evlist__enable(struct perf_evlist *evlist) static int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) { - int nfds = cpu_map__nr(evlist->cpus) * evlist->threads->nr * evlist->nr_entries; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = thread_map__nr(evlist->threads); + int nfds = nr_cpus * nr_threads * evlist->nr_entries; evlist->pollfd = malloc(sizeof(struct pollfd) * nfds); return evlist->pollfd != NULL ? 0 : -ENOMEM; } @@ -417,7 +423,7 @@ static int perf_evlist__alloc_mmap(struct perf_evlist *evlist) { evlist->nr_mmaps = cpu_map__nr(evlist->cpus); if (cpu_map__all(evlist->cpus)) - evlist->nr_mmaps = evlist->threads->nr; + evlist->nr_mmaps = thread_map__nr(evlist->threads); evlist->mmap = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap)); return evlist->mmap != NULL ? 0 : -ENOMEM; } @@ -442,11 +448,13 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m { struct perf_evsel *evsel; int cpu, thread; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = thread_map__nr(evlist->threads); - for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { int output = -1; - for (thread = 0; thread < evlist->threads->nr; thread++) { + for (thread = 0; thread < nr_threads; thread++) { list_for_each_entry(evsel, &evlist->entries, node) { int fd = FD(evsel, cpu, thread); @@ -470,7 +478,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m return 0; out_unmap: - for (cpu = 0; cpu < cpu_map__nr(evlist->cpus); cpu++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { if (evlist->mmap[cpu].base != NULL) { munmap(evlist->mmap[cpu].base, evlist->mmap_len); evlist->mmap[cpu].base = NULL; @@ -483,8 +491,9 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, in { struct perf_evsel *evsel; int thread; + int nr_threads = thread_map__nr(evlist->threads); - for (thread = 0; thread < evlist->threads->nr; thread++) { + for (thread = 0; thread < nr_threads; thread++) { int output = -1; list_for_each_entry(evsel, &evlist->entries, node) { @@ -509,7 +518,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, in return 0; out_unmap: - for (thread = 0; thread < evlist->threads->nr; thread++) { + for (thread = 0; thread < nr_threads; thread++) { if (evlist->mmap[thread].base != NULL) { munmap(evlist->mmap[thread].base, evlist->mmap_len); evlist->mmap[thread].base = NULL; @@ -610,7 +619,7 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist) struct perf_evsel *evsel; int err = 0; const int ncpus = cpu_map__nr(evlist->cpus), - nthreads = evlist->threads->nr; + nthreads = thread_map__nr(evlist->threads); list_for_each_entry(evsel, &evlist->entries, node) { if (evsel->filter == NULL) @@ -629,7 +638,7 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) struct perf_evsel *evsel; int err = 0; const int ncpus = cpu_map__nr(evlist->cpus), - nthreads = evlist->threads->nr; + nthreads = thread_map__nr(evlist->threads); list_for_each_entry(evsel, &evlist->entries, node) { err = perf_evsel__set_filter(evsel, ncpus, nthreads, filter); @@ -726,7 +735,7 @@ int perf_evlist__open(struct perf_evlist *evlist) return 0; out_err: ncpus = cpu_map__nr(evlist->cpus); - nthreads = evlist->threads ? evlist->threads->nr : 1; + nthreads = thread_map__nr(evlist->threads); list_for_each_entry_reverse(evsel, &evlist->entries, node) perf_evsel__close(evsel, ncpus, nthreads); diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h index f718df8a3c59..0cd8b3108084 100644 --- a/tools/perf/util/thread_map.h +++ b/tools/perf/util/thread_map.h @@ -21,4 +21,9 @@ void thread_map__delete(struct thread_map *threads); size_t thread_map__fprintf(struct thread_map *threads, FILE *fp); +static inline int thread_map__nr(struct thread_map *threads) +{ + return threads ? threads->nr : 1; +} + #endif /* __PERF_THREAD_MAP_H */ -- cgit v1.2.3 From 6ef73ec449af998ca34673636d00decc8e808544 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:15 +0900 Subject: perf evlist: Pass struct perf_target to perf_evlist__prepare_workload() It's a preparation step of removing @opts arg from the function so that it can be used more widely. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 3 ++- tools/perf/builtin-trace.c | 3 ++- tools/perf/tests/perf-record.c | 2 +- tools/perf/util/evlist.c | 3 ++- tools/perf/util/evlist.h | 1 + 5 files changed, 8 insertions(+), 4 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index e3261eae0ad7..a80301797e89 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -474,7 +474,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) } if (forks) { - err = perf_evlist__prepare_workload(evsel_list, opts, argv); + err = perf_evlist__prepare_workload(evsel_list, &opts->target, + opts, argv); if (err < 0) { pr_err("Couldn't run the workload!\n"); goto out_delete_session; diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 6198eb11e1c6..1de3971437c9 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -461,7 +461,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv) signal(SIGINT, sig_handler); if (forks) { - err = perf_evlist__prepare_workload(evlist, &trace->opts, argv); + err = perf_evlist__prepare_workload(evlist, &trace->opts.target, + &trace->opts, argv); if (err < 0) { printf("Couldn't run the workload!\n"); goto out_delete_evlist; diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index f6ba75a983a8..adf6b4a21a60 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -93,7 +93,7 @@ int test__PERF_RECORD(void) * so that we have time to open the evlist (calling sys_perf_event_open * on all the fds) and then mmap them. */ - err = perf_evlist__prepare_workload(evlist, &opts, argv); + err = perf_evlist__prepare_workload(evlist, &opts.target, &opts, argv); if (err < 0) { pr_debug("Couldn't run the workload!\n"); goto out_delete_maps; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 7d71a691b864..291884c804e9 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -745,6 +745,7 @@ out_err: } int perf_evlist__prepare_workload(struct perf_evlist *evlist, + struct perf_target *target, struct perf_record_opts *opts, const char *argv[]) { @@ -800,7 +801,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, exit(-1); } - if (perf_target__none(&opts->target)) + if (perf_target__none(target)) evlist->threads->map[0] = evlist->workload.pid; close(child_ready_pipe[1]); diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 9a7b76e3a873..e089906cb4de 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -86,6 +86,7 @@ void perf_evlist__config(struct perf_evlist *evlist, struct perf_record_opts *opts); int perf_evlist__prepare_workload(struct perf_evlist *evlist, + struct perf_target *target, struct perf_record_opts *opts, const char *argv[]); int perf_evlist__start_workload(struct perf_evlist *evlist); -- cgit v1.2.3 From 119fa3c922ff53a334507e198b2e3c66e99f54dc Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:16 +0900 Subject: perf evlist: Do not pass struct record_opts to perf_evlist__prepare_workload() Since it's only used for checking ->pipe_output, we can pass the result directly. Now the perf_evlist__prepare_workload() don't have a dependency of struct perf_record_opts, it can be called from other places like perf stat. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 2 +- tools/perf/builtin-trace.c | 2 +- tools/perf/tests/perf-record.c | 2 +- tools/perf/util/evlist.c | 5 ++--- tools/perf/util/evlist.h | 3 +-- 5 files changed, 6 insertions(+), 8 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index a80301797e89..2a43c4423f6a 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -475,7 +475,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) if (forks) { err = perf_evlist__prepare_workload(evsel_list, &opts->target, - opts, argv); + argv, opts->pipe_output); if (err < 0) { pr_err("Couldn't run the workload!\n"); goto out_delete_session; diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 1de3971437c9..3d9944c3d851 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -462,7 +462,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv) if (forks) { err = perf_evlist__prepare_workload(evlist, &trace->opts.target, - &trace->opts, argv); + argv, false); if (err < 0) { printf("Couldn't run the workload!\n"); goto out_delete_evlist; diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index adf6b4a21a60..a1c41b7d3c07 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -93,7 +93,7 @@ int test__PERF_RECORD(void) * so that we have time to open the evlist (calling sys_perf_event_open * on all the fds) and then mmap them. */ - err = perf_evlist__prepare_workload(evlist, &opts.target, &opts, argv); + err = perf_evlist__prepare_workload(evlist, &opts.target, argv, false); if (err < 0) { pr_debug("Couldn't run the workload!\n"); goto out_delete_maps; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 291884c804e9..9a337f091b22 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -746,8 +746,7 @@ out_err: int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct perf_target *target, - struct perf_record_opts *opts, - const char *argv[]) + const char *argv[], bool pipe_output) { int child_ready_pipe[2], go_pipe[2]; char bf; @@ -769,7 +768,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, } if (!evlist->workload.pid) { - if (opts->pipe_output) + if (pipe_output) dup2(2, 1); close(child_ready_pipe[0]); diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index e089906cb4de..276a5acc56e6 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -87,8 +87,7 @@ void perf_evlist__config(struct perf_evlist *evlist, int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct perf_target *target, - struct perf_record_opts *opts, - const char *argv[]); + const char *argv[], bool pipe_output); int perf_evlist__start_workload(struct perf_evlist *evlist); int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, -- cgit v1.2.3 From 55e162ea764cb5b38f27ea0b16ee7d31c1a5aedb Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:17 +0900 Subject: perf evlist: Add want_signal parameter to perf_evlist__prepare_workload() In case a caller doesn't want to receive SIGUSR1 when the child failed to exec(). Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 3 ++- tools/perf/builtin-trace.c | 2 +- tools/perf/tests/perf-record.c | 3 ++- tools/perf/util/evlist.c | 6 ++++-- tools/perf/util/evlist.h | 3 ++- 5 files changed, 11 insertions(+), 6 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 2a43c4423f6a..80cc3ea07788 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -475,7 +475,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) if (forks) { err = perf_evlist__prepare_workload(evsel_list, &opts->target, - argv, opts->pipe_output); + argv, opts->pipe_output, + true); if (err < 0) { pr_err("Couldn't run the workload!\n"); goto out_delete_session; diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 3d9944c3d851..f0c20ef0cd1c 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -462,7 +462,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv) if (forks) { err = perf_evlist__prepare_workload(evlist, &trace->opts.target, - argv, false); + argv, false, false); if (err < 0) { printf("Couldn't run the workload!\n"); goto out_delete_evlist; diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index a1c41b7d3c07..ffab5a41ff0a 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -93,7 +93,8 @@ int test__PERF_RECORD(void) * so that we have time to open the evlist (calling sys_perf_event_open * on all the fds) and then mmap them. */ - err = perf_evlist__prepare_workload(evlist, &opts.target, argv, false); + err = perf_evlist__prepare_workload(evlist, &opts.target, argv, + false, false); if (err < 0) { pr_debug("Couldn't run the workload!\n"); goto out_delete_maps; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 9a337f091b22..5b012b8d7a14 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -746,7 +746,8 @@ out_err: int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct perf_target *target, - const char *argv[], bool pipe_output) + const char *argv[], bool pipe_output, + bool want_signal) { int child_ready_pipe[2], go_pipe[2]; char bf; @@ -796,7 +797,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, execvp(argv[0], (char **)argv); perror(argv[0]); - kill(getppid(), SIGUSR1); + if (want_signal) + kill(getppid(), SIGUSR1); exit(-1); } diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 276a5acc56e6..c096da7d6d58 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -87,7 +87,8 @@ void perf_evlist__config(struct perf_evlist *evlist, int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct perf_target *target, - const char *argv[], bool pipe_output); + const char *argv[], bool pipe_output, + bool want_signal); int perf_evlist__start_workload(struct perf_evlist *evlist); int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, -- cgit v1.2.3 From acf2892270dcc4288c572b1159474c81f3819749 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 11 Mar 2013 16:43:18 +0900 Subject: perf stat: Use perf_evlist__prepare/start_workload() The perf stat had an open code to the duplicated work. Use the helper as it now can be called without struct perf_record_opts. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362987798-24969-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 58 ++++++----------------------------------------- 1 file changed, 7 insertions(+), 51 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 20ffaf98782e..69fe6ed89627 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -337,16 +337,14 @@ static void print_interval(void) } } -static int __run_perf_stat(int argc __maybe_unused, const char **argv) +static int __run_perf_stat(int argc, const char **argv) { char msg[512]; unsigned long long t0, t1; struct perf_evsel *counter; struct timespec ts; int status = 0; - int child_ready_pipe[2], go_pipe[2]; const bool forks = (argc > 0); - char buf; if (interval) { ts.tv_sec = interval / 1000; @@ -362,55 +360,12 @@ static int __run_perf_stat(int argc __maybe_unused, const char **argv) return -1; } - if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) { - perror("failed to create pipes"); - return -1; - } - if (forks) { - if ((child_pid = fork()) < 0) - perror("failed to fork"); - - if (!child_pid) { - close(child_ready_pipe[0]); - close(go_pipe[1]); - fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); - - /* - * Do a dummy execvp to get the PLT entry resolved, - * so we avoid the resolver overhead on the real - * execvp call. - */ - execvp("", (char **)argv); - - /* - * Tell the parent we're ready to go - */ - close(child_ready_pipe[1]); - - /* - * Wait until the parent tells us to go. - */ - if (read(go_pipe[0], &buf, 1) == -1) - perror("unable to read pipe"); - - execvp(argv[0], (char **)argv); - - perror(argv[0]); - exit(-1); + if (perf_evlist__prepare_workload(evsel_list, &target, argv, + false, false) < 0) { + perror("failed to prepare workload"); + return -1; } - - if (perf_target__none(&target)) - evsel_list->threads->map[0] = child_pid; - - /* - * Wait for the child to be ready to exec. - */ - close(child_ready_pipe[1]); - close(go_pipe[0]); - if (read(child_ready_pipe[0], &buf, 1) == -1) - perror("unable to read pipe"); - close(child_ready_pipe[0]); } if (group) @@ -457,7 +412,8 @@ static int __run_perf_stat(int argc __maybe_unused, const char **argv) clock_gettime(CLOCK_MONOTONIC, &ref_time); if (forks) { - close(go_pipe[1]); + perf_evlist__start_workload(evsel_list); + if (interval) { while (!waitpid(child_pid, &status, WNOHANG)) { nanosleep(&ts, NULL); -- cgit v1.2.3 From db8fd07a541fc2d5e8076f0151286e19591465b3 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:21 +0900 Subject: perf annotate: Pass evsel instead of evidx on annotation functions Pass evsel instead of evidx. This is a preparation for supporting event group view in annotation and no functional change is intended. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-annotate.c | 16 +++++++++------- tools/perf/builtin-top.c | 2 +- tools/perf/ui/browsers/annotate.c | 30 +++++++++++++++++------------- tools/perf/ui/browsers/hists.c | 2 +- tools/perf/ui/gtk/annotate.c | 10 ++++++---- tools/perf/util/annotate.c | 36 +++++++++++++++++++----------------- tools/perf/util/annotate.h | 36 +++++++++++++++++++----------------- tools/perf/util/hist.h | 5 +++-- 8 files changed, 75 insertions(+), 62 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 2e6961ea3184..2f015a99481b 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -109,14 +109,16 @@ static int process_sample_event(struct perf_tool *tool, return 0; } -static int hist_entry__tty_annotate(struct hist_entry *he, int evidx, +static int hist_entry__tty_annotate(struct hist_entry *he, + struct perf_evsel *evsel, struct perf_annotate *ann) { - return symbol__tty_annotate(he->ms.sym, he->ms.map, evidx, + return symbol__tty_annotate(he->ms.sym, he->ms.map, evsel, ann->print_line, ann->full_paths, 0, 0); } -static void hists__find_annotations(struct hists *self, int evidx, +static void hists__find_annotations(struct hists *self, + struct perf_evsel *evsel, struct perf_annotate *ann) { struct rb_node *nd = rb_first(&self->entries), *next; @@ -142,14 +144,14 @@ find_next: if (use_browser == 2) { int ret; - ret = hist_entry__gtk_annotate(he, evidx, NULL); + ret = hist_entry__gtk_annotate(he, evsel, NULL); if (!ret || !ann->skip_missing) return; /* skip missing symbols */ nd = rb_next(nd); } else if (use_browser == 1) { - key = hist_entry__tui_annotate(he, evidx, NULL); + key = hist_entry__tui_annotate(he, evsel, NULL); switch (key) { case -1: if (!ann->skip_missing) @@ -168,7 +170,7 @@ find_next: if (next != NULL) nd = next; } else { - hist_entry__tty_annotate(he, evidx, ann); + hist_entry__tty_annotate(he, evsel, ann); nd = rb_next(nd); /* * Since we have a hist_entry per IP for the same @@ -230,7 +232,7 @@ static int __cmd_annotate(struct perf_annotate *ann) total_nr_samples += nr_samples; hists__collapse_resort(hists); hists__output_resort(hists); - hists__find_annotations(hists, pos->idx, ann); + hists__find_annotations(hists, pos, ann); } } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index c5601aa7a870..b5520ad0dbb8 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -231,7 +231,7 @@ static void perf_top__show_details(struct perf_top *top) printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); - more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, + more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 0, top->sym_pcnt_filter, top->print_entries, 4); if (top->zero) symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 7dca1555c610..67798472384b 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -8,6 +8,7 @@ #include "../../util/hist.h" #include "../../util/sort.h" #include "../../util/symbol.h" +#include "../../util/evsel.h" #include #include @@ -331,7 +332,7 @@ static void annotate_browser__set_rb_top(struct annotate_browser *browser, } static void annotate_browser__calc_percent(struct annotate_browser *browser, - int evidx) + struct perf_evsel *evsel) { struct map_symbol *ms = browser->b.priv; struct symbol *sym = ms->sym; @@ -344,7 +345,7 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, list_for_each_entry(pos, ¬es->src->source, node) { struct browser_disasm_line *bpos = disasm_line__browser(pos); - bpos->percent = disasm_line__calc_percent(pos, sym, evidx); + bpos->percent = disasm_line__calc_percent(pos, sym, evsel->idx); if (bpos->percent < 0.01) { RB_CLEAR_NODE(&bpos->rb_node); continue; @@ -401,7 +402,8 @@ static void annotate_browser__init_asm_mode(struct annotate_browser *browser) browser->b.nr_entries = browser->nr_asm_entries; } -static bool annotate_browser__callq(struct annotate_browser *browser, int evidx, +static bool annotate_browser__callq(struct annotate_browser *browser, + struct perf_evsel *evsel, struct hist_browser_timer *hbt) { struct map_symbol *ms = browser->b.priv; @@ -432,7 +434,7 @@ static bool annotate_browser__callq(struct annotate_browser *browser, int evidx, } pthread_mutex_unlock(¬es->lock); - symbol__tui_annotate(target, ms->map, evidx, hbt); + symbol__tui_annotate(target, ms->map, evsel, hbt); ui_browser__show_title(&browser->b, sym->name); return true; } @@ -615,7 +617,8 @@ static void annotate_browser__update_addr_width(struct annotate_browser *browser browser->addr_width += browser->jumps_width + 1; } -static int annotate_browser__run(struct annotate_browser *browser, int evidx, +static int annotate_browser__run(struct annotate_browser *browser, + struct perf_evsel *evsel, struct hist_browser_timer *hbt) { struct rb_node *nd = NULL; @@ -628,7 +631,7 @@ static int annotate_browser__run(struct annotate_browser *browser, int evidx, if (ui_browser__show(&browser->b, sym->name, help) < 0) return -1; - annotate_browser__calc_percent(browser, evidx); + annotate_browser__calc_percent(browser, evsel); if (browser->curr_hot) { annotate_browser__set_rb_top(browser, browser->curr_hot); @@ -641,7 +644,7 @@ static int annotate_browser__run(struct annotate_browser *browser, int evidx, key = ui_browser__run(&browser->b, delay_secs); if (delay_secs != 0) { - annotate_browser__calc_percent(browser, evidx); + annotate_browser__calc_percent(browser, evsel); /* * Current line focus got out of the list of most active * lines, NULL it so that if TAB|UNTAB is pressed, we @@ -657,7 +660,7 @@ static int annotate_browser__run(struct annotate_browser *browser, int evidx, hbt->timer(hbt->arg); if (delay_secs != 0) - symbol__annotate_decay_histogram(sym, evidx); + symbol__annotate_decay_histogram(sym, evsel->idx); continue; case K_TAB: if (nd != NULL) { @@ -754,7 +757,7 @@ show_help: goto show_sup_ins; goto out; } else if (!(annotate_browser__jump(browser) || - annotate_browser__callq(browser, evidx, hbt))) { + annotate_browser__callq(browser, evsel, hbt))) { show_sup_ins: ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions."); } @@ -776,10 +779,10 @@ out: return key; } -int hist_entry__tui_annotate(struct hist_entry *he, int evidx, +int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel, struct hist_browser_timer *hbt) { - return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx, hbt); + return symbol__tui_annotate(he->ms.sym, he->ms.map, evsel, hbt); } static void annotate_browser__mark_jump_targets(struct annotate_browser *browser, @@ -826,7 +829,8 @@ static inline int width_jumps(int n) return 1; } -int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, +int symbol__tui_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct hist_browser_timer *hbt) { struct disasm_line *pos, *n; @@ -909,7 +913,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, annotate_browser__update_addr_width(&browser); - ret = annotate_browser__run(&browser, evidx, hbt); + ret = annotate_browser__run(&browser, evsel, hbt); list_for_each_entry_safe(pos, n, ¬es->src->source, node) { list_del(&pos->node); disasm_line__free(pos); diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index aa22704047d6..0e125e1543dc 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1599,7 +1599,7 @@ do_annotate: * Don't let this be freed, say, by hists__decay_entry. */ he->used = true; - err = hist_entry__tui_annotate(he, evsel->idx, hbt); + err = hist_entry__tui_annotate(he, evsel, hbt); he->used = false; /* * offer option to annotate the other branch source or target diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c index 7d8dc581a545..6e2fc7e3f093 100644 --- a/tools/perf/ui/gtk/annotate.c +++ b/tools/perf/ui/gtk/annotate.c @@ -1,6 +1,7 @@ #include "gtk.h" #include "util/debug.h" #include "util/annotate.h" +#include "util/evsel.h" #include "ui/helpline.h" @@ -85,7 +86,7 @@ static int perf_gtk__get_line(char *buf, size_t size, struct disasm_line *dl) } static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym, - struct map *map, int evidx, + struct map *map, struct perf_evsel *evsel, struct hist_browser_timer *hbt __maybe_unused) { struct disasm_line *pos, *n; @@ -121,7 +122,7 @@ static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym, gtk_list_store_append(store, &iter); - if (perf_gtk__get_percent(s, sizeof(s), sym, pos, evidx)) + if (perf_gtk__get_percent(s, sizeof(s), sym, pos, evsel->idx)) gtk_list_store_set(store, &iter, ANN_COL__PERCENT, s, -1); if (perf_gtk__get_offset(s, sizeof(s), sym, map, pos)) gtk_list_store_set(store, &iter, ANN_COL__OFFSET, s, -1); @@ -139,7 +140,8 @@ static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym, return 0; } -int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx, +int symbol__gtk_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct hist_browser_timer *hbt) { GtkWidget *window; @@ -206,7 +208,7 @@ int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx, gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label); - perf_gtk__annotate_symbol(scrolled_window, sym, map, evidx, hbt); + perf_gtk__annotate_symbol(scrolled_window, sym, map, evsel, hbt); return 0; } diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index d33fe937e6f1..7eac5f0895ee 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -14,6 +14,7 @@ #include "symbol.h" #include "debug.h" #include "annotate.h" +#include "evsel.h" #include #include @@ -603,7 +604,7 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa } static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start, - int evidx, u64 len, int min_pcnt, int printed, + struct perf_evsel *evsel, u64 len, int min_pcnt, int printed, int max_lines, struct disasm_line *queue) { static const char *prev_line; @@ -616,7 +617,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st const char *color; struct annotation *notes = symbol__annotation(sym); struct source_line *src_line = notes->src->lines; - struct sym_hist *h = annotation__histogram(notes, evidx); + struct sym_hist *h = annotation__histogram(notes, evsel->idx); s64 offset = dl->offset; const u64 addr = start + offset; struct disasm_line *next; @@ -648,7 +649,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st list_for_each_entry_from(queue, ¬es->src->source, node) { if (queue == dl) break; - disasm_line__print(queue, sym, start, evidx, len, + disasm_line__print(queue, sym, start, evsel, len, 0, 0, 1, NULL); } } @@ -935,7 +936,8 @@ static void symbol__free_source_line(struct symbol *sym, int len) /* Get the filename:line for the colored entries */ static int symbol__get_source_line(struct symbol *sym, struct map *map, - int evidx, struct rb_root *root, int len, + struct perf_evsel *evsel, + struct rb_root *root, int len, const char *filename) { u64 start; @@ -943,7 +945,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map, char cmd[PATH_MAX * 2]; struct source_line *src_line; struct annotation *notes = symbol__annotation(sym); - struct sym_hist *h = annotation__histogram(notes, evidx); + struct sym_hist *h = annotation__histogram(notes, evsel->idx); struct rb_root tmp_root = RB_ROOT; if (!h->sum) @@ -1018,10 +1020,10 @@ static void print_summary(struct rb_root *root, const char *filename) } } -static void symbol__annotate_hits(struct symbol *sym, int evidx) +static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel) { struct annotation *notes = symbol__annotation(sym); - struct sym_hist *h = annotation__histogram(notes, evidx); + struct sym_hist *h = annotation__histogram(notes, evsel->idx); u64 len = symbol__size(sym), offset; for (offset = 0; offset < len; ++offset) @@ -1031,9 +1033,9 @@ static void symbol__annotate_hits(struct symbol *sym, int evidx) printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum); } -int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx, - bool full_paths, int min_pcnt, int max_lines, - int context) +int symbol__annotate_printf(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, bool full_paths, + int min_pcnt, int max_lines, int context) { struct dso *dso = map->dso; char *filename; @@ -1060,7 +1062,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx, printf("------------------------------------------------\n"); if (verbose) - symbol__annotate_hits(sym, evidx); + symbol__annotate_hits(sym, evsel); list_for_each_entry(pos, ¬es->src->source, node) { if (context && queue == NULL) { @@ -1068,7 +1070,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx, queue_len = 0; } - switch (disasm_line__print(pos, sym, start, evidx, len, + switch (disasm_line__print(pos, sym, start, evsel, len, min_pcnt, printed, max_lines, queue)) { case 0: @@ -1163,9 +1165,9 @@ size_t disasm__fprintf(struct list_head *head, FILE *fp) return printed; } -int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx, - bool print_lines, bool full_paths, int min_pcnt, - int max_lines) +int symbol__tty_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, bool print_lines, + bool full_paths, int min_pcnt, int max_lines) { struct dso *dso = map->dso; const char *filename = dso->long_name; @@ -1178,12 +1180,12 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx, len = symbol__size(sym); if (print_lines) { - symbol__get_source_line(sym, map, evidx, &source_line, + symbol__get_source_line(sym, map, evsel, &source_line, len, filename); print_summary(&source_line, filename); } - symbol__annotate_printf(sym, map, evidx, full_paths, + symbol__annotate_printf(sym, map, evsel, full_paths, min_pcnt, max_lines, 0); if (print_lines) symbol__free_source_line(sym, len); diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index c422440fe611..376395475663 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -130,47 +130,49 @@ void symbol__annotate_zero_histograms(struct symbol *sym); int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize); int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym); -int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx, - bool full_paths, int min_pcnt, int max_lines, - int context); +int symbol__annotate_printf(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, bool full_paths, + int min_pcnt, int max_lines, int context); void symbol__annotate_zero_histogram(struct symbol *sym, int evidx); void symbol__annotate_decay_histogram(struct symbol *sym, int evidx); void disasm__purge(struct list_head *head); -int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx, - bool print_lines, bool full_paths, int min_pcnt, - int max_lines); +int symbol__tty_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, bool print_lines, + bool full_paths, int min_pcnt, int max_lines); #ifdef NEWT_SUPPORT -int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, +int symbol__tui_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct hist_browser_timer *hbt); #else static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused, - struct map *map __maybe_unused, - int evidx __maybe_unused, - struct hist_browser_timer *hbt - __maybe_unused) + struct map *map __maybe_unused, + struct perf_evsel *evsel __maybe_unused, + struct hist_browser_timer *hbt + __maybe_unused) { return 0; } #endif #ifdef GTK2_SUPPORT -int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx, +int symbol__gtk_annotate(struct symbol *sym, struct map *map, + struct perf_evsel *evsel, struct hist_browser_timer *hbt); -static inline int hist_entry__gtk_annotate(struct hist_entry *he, int evidx, +static inline int hist_entry__gtk_annotate(struct hist_entry *he, + struct perf_evsel *evsel, struct hist_browser_timer *hbt) { - return symbol__gtk_annotate(he->ms.sym, he->ms.map, evidx, hbt); + return symbol__gtk_annotate(he->ms.sym, he->ms.map, evsel, hbt); } void perf_gtk__show_annotations(void); #else static inline int hist_entry__gtk_annotate(struct hist_entry *he __maybe_unused, - int evidx __maybe_unused, - struct hist_browser_timer *hbt - __maybe_unused) + struct perf_evsel *evsel __maybe_unused, + struct hist_browser_timer *hbt __maybe_unused) { return 0; } diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 226a4ae2f936..848331377bdb 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -177,7 +177,7 @@ struct hist_browser_timer { #ifdef NEWT_SUPPORT #include "../ui/keysyms.h" -int hist_entry__tui_annotate(struct hist_entry *he, int evidx, +int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel, struct hist_browser_timer *hbt); int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help, @@ -196,7 +196,8 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused, static inline int hist_entry__tui_annotate(struct hist_entry *self __maybe_unused, - int evidx __maybe_unused, + struct perf_evsel *evsel + __maybe_unused, struct hist_browser_timer *hbt __maybe_unused) { -- cgit v1.2.3 From 3aec150af3de6c00570bdacf45bf5a999ab9cf1d Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:22 +0900 Subject: perf annotate: Add a comment on the symbol__parse_objdump_line() The symbol__parse_objdump_line() parses result of the objdump run but it's hard to follow if one doesn't know the output format of the objdump. Add a head comment on the function to help her. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'tools/perf') diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 7eac5f0895ee..fa347b169e27 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -689,6 +689,26 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st return 0; } +/* + * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) + * which looks like following + * + * 0000000000415500 <_init>: + * 415500: sub $0x8,%rsp + * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> + * 41550b: test %rax,%rax + * 41550e: je 415515 <_init+0x15> + * 415510: callq 416e70 <__gmon_start__@plt> + * 415515: add $0x8,%rsp + * 415519: retq + * + * it will be parsed and saved into struct disasm_line as + * + * + * The offset will be a relative offset from the start of the symbol and -1 + * means that it's not a disassembly line so should be treated differently. + * The ops.raw part will be parsed further according to type of the instruction. + */ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map, FILE *file, size_t privsize) { -- cgit v1.2.3 From e5ccf9f45d8bff6bfeafa561d2238b0e4beb415e Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:23 +0900 Subject: perf annotate: Factor out disasm__calc_percent() Factor out calculation of histogram of a symbol into disasm__calc_percent. It'll be used for later changes. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 49 ++++++++++++++++++++++++++++------------------ 1 file changed, 30 insertions(+), 19 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index fa347b169e27..a91d7b186081 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -603,6 +603,33 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa return NULL; } +static double disasm__calc_percent(struct disasm_line *next, + struct annotation *notes, int evidx, + s64 offset, u64 len, const char **path) +{ + struct source_line *src_line = notes->src->lines; + struct sym_hist *h = annotation__histogram(notes, evidx); + unsigned int hits = 0; + double percent = 0.0; + + while (offset < (s64)len && + (next == NULL || offset < next->offset)) { + if (src_line) { + if (*path == NULL) + *path = src_line[offset].path; + percent += src_line[offset].percent; + } else + hits += h->addr[offset]; + + ++offset; + } + + if (src_line == NULL && h->sum) + percent = 100.0 * hits / h->sum; + + return percent; +} + static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start, struct perf_evsel *evsel, u64 len, int min_pcnt, int printed, int max_lines, struct disasm_line *queue) @@ -612,33 +639,17 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st if (dl->offset != -1) { const char *path = NULL; - unsigned int hits = 0; - double percent = 0.0; + double percent; const char *color; struct annotation *notes = symbol__annotation(sym); - struct source_line *src_line = notes->src->lines; - struct sym_hist *h = annotation__histogram(notes, evsel->idx); s64 offset = dl->offset; const u64 addr = start + offset; struct disasm_line *next; next = disasm__get_next_ip_line(¬es->src->source, dl); - while (offset < (s64)len && - (next == NULL || offset < next->offset)) { - if (src_line) { - if (path == NULL) - path = src_line[offset].path; - percent += src_line[offset].percent; - } else - hits += h->addr[offset]; - - ++offset; - } - - if (src_line == NULL && h->sum) - percent = 100.0 * hits / h->sum; - + percent = disasm__calc_percent(next, notes, evsel->idx, + offset, len, &path); if (percent < min_pcnt) return -1; -- cgit v1.2.3 From bd64fcb8805d8e4575f95f0df22f43b74418a4ec Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:24 +0900 Subject: perf annotate: Cleanup disasm__calc_percent() The loop end condition is calculated from next disasm_line or the symbol size if it's the last disasm_line. But it doesn't need to be calculated at every iteration. Moving it out of the function can simplify code a bit. Also the src_line doesn't need to be checked in every time. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index a91d7b186081..ae71325d3dc7 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -603,29 +603,28 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa return NULL; } -static double disasm__calc_percent(struct disasm_line *next, - struct annotation *notes, int evidx, - s64 offset, u64 len, const char **path) +static double disasm__calc_percent(struct annotation *notes, int evidx, + s64 offset, s64 end, const char **path) { struct source_line *src_line = notes->src->lines; struct sym_hist *h = annotation__histogram(notes, evidx); unsigned int hits = 0; double percent = 0.0; - while (offset < (s64)len && - (next == NULL || offset < next->offset)) { - if (src_line) { + if (src_line) { + while (offset < end) { if (*path == NULL) *path = src_line[offset].path; - percent += src_line[offset].percent; - } else - hits += h->addr[offset]; - ++offset; - } + percent += src_line[offset++].percent; + } + } else { + while (offset < end) + hits += h->addr[offset++]; - if (src_line == NULL && h->sum) - percent = 100.0 * hits / h->sum; + if (h->sum) + percent = 100.0 * hits / h->sum; + } return percent; } @@ -648,8 +647,9 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st next = disasm__get_next_ip_line(¬es->src->source, dl); - percent = disasm__calc_percent(next, notes, evsel->idx, - offset, len, &path); + percent = disasm__calc_percent(notes, evsel->idx, offset, + next ? next->offset : (s64) len, + &path); if (percent < min_pcnt) return -1; -- cgit v1.2.3 From b1dd443296b4f8c6869eba790eec950f80392aea Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:25 +0900 Subject: perf annotate: Add basic support to event group view Add --group option to enable event grouping. When enabled, all the group members information will be shown with the leader so skip non-leader events. It only supports --stdio output currently. Later patches will extend additional features. $ perf annotate --group --stdio ... Percent | Source code & Disassembly of libpthread-2.15.so -------------------------------------------------------------------------------- : : : : Disassembly of section .text: : : 000000387dc0aa50 <__pthread_mutex_unlock_usercnt>: 8.08 2.40 5.29 : 387dc0aa50: mov %rdi,%rdx 0.00 0.00 0.00 : 387dc0aa53: mov 0x10(%rdi),%edi 0.00 0.00 0.00 : 387dc0aa56: mov %edi,%eax 0.00 0.80 0.00 : 387dc0aa58: and $0x7f,%eax 3.03 2.40 3.53 : 387dc0aa5b: test $0x7c,%dil 0.00 0.00 0.00 : 387dc0aa5f: jne 387dc0aaa9 <__pthread_mutex_unlock_use 0.00 0.00 0.00 : 387dc0aa61: test %eax,%eax 0.00 0.00 0.00 : 387dc0aa63: jne 387dc0aa85 <__pthread_mutex_unlock_use 0.00 0.00 0.00 : 387dc0aa65: and $0x80,%edi 0.00 0.00 0.00 : 387dc0aa6b: test %esi,%esi 3.03 5.60 7.06 : 387dc0aa6d: movl $0x0,0x8(%rdx) 0.00 0.00 0.59 : 387dc0aa74: je 387dc0aa7a <__pthread_mutex_unlock_use 0.00 0.00 0.00 : 387dc0aa76: subl $0x1,0xc(%rdx) 2.02 5.60 1.18 : 387dc0aa7a: mov %edi,%esi 0.00 0.00 0.00 : 387dc0aa7c: lock decl (%rdx) 83.84 83.20 82.35 : 387dc0aa7f: jne 387dc0aada <_L_unlock_586> 0.00 0.00 0.00 : 387dc0aa81: nop 0.00 0.00 0.00 : 387dc0aa82: xor %eax,%eax 0.00 0.00 0.00 : 387dc0aa84: retq ... Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-annotate.txt | 3 ++ tools/perf/builtin-annotate.c | 7 ++++ tools/perf/util/annotate.c | 64 +++++++++++++++++++++++++----- 3 files changed, 63 insertions(+), 11 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index 5ad07ef417f0..e9cd39a92dc2 100644 --- a/tools/perf/Documentation/perf-annotate.txt +++ b/tools/perf/Documentation/perf-annotate.txt @@ -93,6 +93,9 @@ OPTIONS --skip-missing:: Skip symbols that cannot be annotated. +--group:: + Show event group information together + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-report[1] diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 2f015a99481b..ae36f3cb5410 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -232,6 +232,11 @@ static int __cmd_annotate(struct perf_annotate *ann) total_nr_samples += nr_samples; hists__collapse_resort(hists); hists__output_resort(hists); + + if (symbol_conf.event_group && + !perf_evsel__is_group_leader(pos)) + continue; + hists__find_annotations(hists, pos, ann); } } @@ -314,6 +319,8 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_STRING(0, "objdump", &objdump_path, "path", "objdump binary to use for disassembly and annotations"), + OPT_BOOLEAN(0, "group", &symbol_conf.event_group, + "Show event group information together"), OPT_END() }; diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index ae71325d3dc7..0955cff5b0ef 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -638,7 +638,9 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st if (dl->offset != -1) { const char *path = NULL; - double percent; + double percent, max_percent = 0.0; + double *ppercents = &percent; + int i, nr_percent = 1; const char *color; struct annotation *notes = symbol__annotation(sym); s64 offset = dl->offset; @@ -647,10 +649,27 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st next = disasm__get_next_ip_line(¬es->src->source, dl); - percent = disasm__calc_percent(notes, evsel->idx, offset, - next ? next->offset : (s64) len, - &path); - if (percent < min_pcnt) + if (symbol_conf.event_group && + perf_evsel__is_group_leader(evsel) && + evsel->nr_members > 1) { + nr_percent = evsel->nr_members; + ppercents = calloc(nr_percent, sizeof(double)); + if (ppercents == NULL) + return -1; + } + + for (i = 0; i < nr_percent; i++) { + percent = disasm__calc_percent(notes, + evsel->idx + i, offset, + next ? next->offset : (s64) len, + &path); + + ppercents[i] = percent; + if (percent > max_percent) + max_percent = percent; + } + + if (max_percent < min_pcnt) return -1; if (max_lines && printed >= max_lines) @@ -665,7 +684,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st } } - color = get_percent_color(percent); + color = get_percent_color(max_percent); /* * Also color the filename and line if needed, with @@ -681,20 +700,35 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st } } - color_fprintf(stdout, color, " %7.2f", percent); + for (i = 0; i < nr_percent; i++) { + percent = ppercents[i]; + color = get_percent_color(percent); + color_fprintf(stdout, color, " %7.2f", percent); + } + printf(" : "); color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr); color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line); + + if (ppercents != &percent) + free(ppercents); + } else if (max_lines && printed >= max_lines) return 1; else { + int width = 8; + if (queue) return -1; + if (symbol_conf.event_group && + perf_evsel__is_group_leader(evsel)) + width *= evsel->nr_members; + if (!*dl->line) - printf(" :\n"); + printf(" %*s:\n", width, " "); else - printf(" : %s\n", dl->line); + printf(" %*s: %s\n", width, " ", dl->line); } return 0; @@ -1077,6 +1111,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int printed = 2, queue_len = 0; int more = 0; u64 len; + int width = 8; + int namelen; filename = strdup(dso->long_name); if (!filename) @@ -1088,9 +1124,15 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, d_filename = basename(filename); len = symbol__size(sym); + namelen = strlen(d_filename); + + if (symbol_conf.event_group && perf_evsel__is_group_leader(evsel)) + width *= evsel->nr_members; - printf(" Percent | Source code & Disassembly of %s\n", d_filename); - printf("------------------------------------------------\n"); + printf(" %-*.*s| Source code & Disassembly of %s\n", + width, width, "Percent", d_filename); + printf("-%-*.*s-------------------------------------\n", + width+namelen, width+namelen, graph_dotted_line); if (verbose) symbol__annotate_hits(sym, evsel); -- cgit v1.2.3 From 759ff497e0e6749437b6723f8d26de0b1833c199 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:26 +0900 Subject: perf evsel: Introduce perf_evsel__is_group_event() helper The perf_evsel__is_group_event function is for checking whether given evsel needs event group view support or not. Please note that it's different to the existing perf_evsel__is_group_leader() which checks only the given evsel is a leader or a standalone (i.e. non-group) event regardless of event group feature. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-report.c | 2 +- tools/perf/ui/browsers/hists.c | 4 ++-- tools/perf/ui/gtk/hists.c | 7 ++----- tools/perf/ui/hist.c | 7 ++----- tools/perf/util/annotate.c | 9 +++------ tools/perf/util/evsel.h | 24 ++++++++++++++++++++++++ 6 files changed, 34 insertions(+), 19 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 96b5a7fee4bb..3f4a79ba5ada 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -314,7 +314,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *self, char buf[512]; size_t size = sizeof(buf); - if (symbol_conf.event_group && evsel->nr_members > 1) { + if (perf_evsel__is_group_event(evsel)) { struct perf_evsel *pos; perf_evsel__group_desc(evsel, buf, size); diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 0e125e1543dc..a5843fd6ab51 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1193,7 +1193,7 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size, char buf[512]; size_t buflen = sizeof(buf); - if (symbol_conf.event_group && evsel->nr_members > 1) { + if (perf_evsel__is_group_event(evsel)) { struct perf_evsel *pos; perf_evsel__group_desc(evsel, buf, buflen); @@ -1709,7 +1709,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser, ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED : HE_COLORSET_NORMAL); - if (symbol_conf.event_group && evsel->nr_members > 1) { + if (perf_evsel__is_group_event(evsel)) { struct perf_evsel *pos; ev_name = perf_evsel__group_name(evsel); diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c index 1e764a8ad259..6f259b3d14e2 100644 --- a/tools/perf/ui/gtk/hists.c +++ b/tools/perf/ui/gtk/hists.c @@ -32,21 +32,18 @@ static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he, int ret; double percent = 0.0; struct hists *hists = he->hists; + struct perf_evsel *evsel = hists_to_evsel(hists); if (hists->stats.total_period) percent = 100.0 * get_field(he) / hists->stats.total_period; ret = __percent_color_snprintf(hpp->buf, hpp->size, percent); - if (symbol_conf.event_group) { + if (perf_evsel__is_group_event(evsel)) { int prev_idx, idx_delta; - struct perf_evsel *evsel = hists_to_evsel(hists); struct hist_entry *pair; int nr_members = evsel->nr_members; - if (nr_members <= 1) - return ret; - prev_idx = perf_evsel__group_idx(evsel); list_for_each_entry(pair, &he->pairs.head, pairs.node) { diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index d671e63aa351..4bf91b09d62d 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -16,6 +16,7 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, { int ret; struct hists *hists = he->hists; + struct perf_evsel *evsel = hists_to_evsel(hists); if (fmt_percent) { double percent = 0.0; @@ -28,15 +29,11 @@ static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, } else ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he)); - if (symbol_conf.event_group) { + if (perf_evsel__is_group_event(evsel)) { int prev_idx, idx_delta; - struct perf_evsel *evsel = hists_to_evsel(hists); struct hist_entry *pair; int nr_members = evsel->nr_members; - if (nr_members <= 1) - return ret; - prev_idx = perf_evsel__group_idx(evsel); list_for_each_entry(pair, &he->pairs.head, pairs.node) { diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 0955cff5b0ef..f080cc40f00b 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -649,9 +649,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st next = disasm__get_next_ip_line(¬es->src->source, dl); - if (symbol_conf.event_group && - perf_evsel__is_group_leader(evsel) && - evsel->nr_members > 1) { + if (perf_evsel__is_group_event(evsel)) { nr_percent = evsel->nr_members; ppercents = calloc(nr_percent, sizeof(double)); if (ppercents == NULL) @@ -721,8 +719,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st if (queue) return -1; - if (symbol_conf.event_group && - perf_evsel__is_group_leader(evsel)) + if (perf_evsel__is_group_event(evsel)) width *= evsel->nr_members; if (!*dl->line) @@ -1126,7 +1123,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, len = symbol__size(sym); namelen = strlen(d_filename); - if (symbol_conf.event_group && perf_evsel__is_group_leader(evsel)) + if (perf_evsel__is_group_event(evsel)) width *= evsel->nr_members; printf(" %-*.*s| Source code & Disassembly of %s\n", diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 52021c3087df..bf758e53c929 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -9,6 +9,7 @@ #include "xyarray.h" #include "cgroup.h" #include "hist.h" +#include "symbol.h" struct perf_counts_values { union { @@ -246,11 +247,34 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel) return list_entry(evsel->node.next, struct perf_evsel, node); } +/** + * perf_evsel__is_group_leader - Return whether given evsel is a leader event + * + * @evsel - evsel selector to be tested + * + * Return %true if @evsel is a group leader or a stand-alone event + */ static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel) { return evsel->leader == evsel; } +/** + * perf_evsel__is_group_event - Return whether given evsel is a group event + * + * @evsel - evsel selector to be tested + * + * Return %true iff event group view is enabled and @evsel is a actual group + * leader which has other members in the group + */ +static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel) +{ + if (!symbol_conf.event_group) + return false; + + return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1; +} + struct perf_attr_details { bool freq; bool verbose; -- cgit v1.2.3 From c5a8368ca667d22a6e45396f23a5392d90396f39 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:27 +0900 Subject: perf annotate: Factor out struct source_line_percent The source_line_percent struct contains percentage value of the symbol histogram. This is a preparation of event group view change. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/annotate.c | 2 +- tools/perf/util/annotate.c | 14 +++++++------- tools/perf/util/annotate.h | 8 ++++++-- 3 files changed, 14 insertions(+), 10 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 67798472384b..cfae57f90146 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -257,7 +257,7 @@ static double disasm_line__calc_percent(struct disasm_line *dl, struct symbol *s while (offset < (s64)len && (next == NULL || offset < next->offset)) { if (src_line) { - percent += src_line[offset].percent; + percent += src_line[offset].p[0].percent; } else hits += h->addr[offset]; diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index f080cc40f00b..ebf2596d7e2e 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -616,7 +616,7 @@ static double disasm__calc_percent(struct annotation *notes, int evidx, if (*path == NULL) *path = src_line[offset].path; - percent += src_line[offset++].percent; + percent += src_line[offset++].p[0].percent; } } else { while (offset < end) @@ -929,7 +929,7 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin ret = strcmp(iter->path, src_line->path); if (ret == 0) { - iter->percent_sum += src_line->percent; + iter->p[0].percent_sum += src_line->p[0].percent; return; } @@ -939,7 +939,7 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin p = &(*p)->rb_right; } - src_line->percent_sum = src_line->percent; + src_line->p[0].percent_sum = src_line->p[0].percent; rb_link_node(&src_line->node, parent, p); rb_insert_color(&src_line->node, root); @@ -955,7 +955,7 @@ static void __resort_source_line(struct rb_root *root, struct source_line *src_l parent = *p; iter = rb_entry(parent, struct source_line, node); - if (src_line->percent_sum > iter->percent_sum) + if (src_line->p[0].percent_sum > iter->p[0].percent_sum) p = &(*p)->rb_left; else p = &(*p)->rb_right; @@ -1025,8 +1025,8 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map, u64 offset; FILE *fp; - src_line[i].percent = 100.0 * h->addr[i] / h->sum; - if (src_line[i].percent <= 0.5) + src_line[i].p[0].percent = 100.0 * h->addr[i] / h->sum; + if (src_line[i].p[0].percent <= 0.5) continue; offset = start + i; @@ -1073,7 +1073,7 @@ static void print_summary(struct rb_root *root, const char *filename) char *path; src_line = rb_entry(node, struct source_line, node); - percent = src_line->percent_sum; + percent = src_line->p[0].percent_sum; color = get_percent_color(percent); path = src_line->path; diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 376395475663..bb2e3f998983 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -74,11 +74,15 @@ struct sym_hist { u64 addr[0]; }; -struct source_line { - struct rb_node node; +struct source_line_percent { double percent; double percent_sum; +}; + +struct source_line { + struct rb_node node; char *path; + struct source_line_percent p[1]; }; /** struct annotated_source - symbols with hits have this attached as in sannotation -- cgit v1.2.3 From 1491c22a5f8563951d3a798758f82b471ecbf501 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:28 +0900 Subject: perf annotate: Support event group view for --print-line Dynamically allocate source_line_percent according to a number of group members and save nr_pcnt to the struct source_line. This way we can handle multiple events in a general manner. However since the size of struct source_line is not fixed anymore, iterating whole source_line should care about its size. $ perf annotate --group --stdio --print-line Sorted summary for file /lib/ld-2.11.1.so ---------------------------------------------- 33.33 0.00 /build/buildd/eglibc-2.11.1/elf/rtld.c:381 33.33 0.00 /build/buildd/eglibc-2.11.1/elf/dynamic-link.h:128 33.33 0.00 /build/buildd/eglibc-2.11.1/elf/do-rel.h:105 0.00 75.00 /build/buildd/eglibc-2.11.1/elf/dynamic-link.h:137 0.00 25.00 /build/buildd/eglibc-2.11.1/elf/dynamic-link.h:187 ... Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 130 +++++++++++++++++++++++++++++++++------------ tools/perf/util/annotate.h | 1 + 2 files changed, 98 insertions(+), 33 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index ebf2596d7e2e..05e34df5d041 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -607,18 +607,26 @@ static double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset, s64 end, const char **path) { struct source_line *src_line = notes->src->lines; - struct sym_hist *h = annotation__histogram(notes, evidx); - unsigned int hits = 0; double percent = 0.0; if (src_line) { + size_t sizeof_src_line = sizeof(*src_line) + + sizeof(src_line->p) * (src_line->nr_pcnt - 1); + while (offset < end) { + src_line = (void *)notes->src->lines + + (sizeof_src_line * offset); + if (*path == NULL) - *path = src_line[offset].path; + *path = src_line->path; - percent += src_line[offset++].p[0].percent; + percent += src_line->p[evidx].percent; + offset++; } } else { + struct sym_hist *h = annotation__histogram(notes, evidx); + unsigned int hits = 0; + while (offset < end) hits += h->addr[offset++]; @@ -658,9 +666,10 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st for (i = 0; i < nr_percent; i++) { percent = disasm__calc_percent(notes, - evsel->idx + i, offset, - next ? next->offset : (s64) len, - &path); + notes->src->lines ? i : evsel->idx + i, + offset, + next ? next->offset : (s64) len, + &path); ppercents[i] = percent; if (percent > max_percent) @@ -921,7 +930,7 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin struct source_line *iter; struct rb_node **p = &root->rb_node; struct rb_node *parent = NULL; - int ret; + int i, ret; while (*p != NULL) { parent = *p; @@ -929,7 +938,8 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin ret = strcmp(iter->path, src_line->path); if (ret == 0) { - iter->p[0].percent_sum += src_line->p[0].percent; + for (i = 0; i < src_line->nr_pcnt; i++) + iter->p[i].percent_sum += src_line->p[i].percent; return; } @@ -939,12 +949,26 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin p = &(*p)->rb_right; } - src_line->p[0].percent_sum = src_line->p[0].percent; + for (i = 0; i < src_line->nr_pcnt; i++) + src_line->p[i].percent_sum = src_line->p[i].percent; rb_link_node(&src_line->node, parent, p); rb_insert_color(&src_line->node, root); } +static int cmp_source_line(struct source_line *a, struct source_line *b) +{ + int i; + + for (i = 0; i < a->nr_pcnt; i++) { + if (a->p[i].percent_sum == b->p[i].percent_sum) + continue; + return a->p[i].percent_sum > b->p[i].percent_sum; + } + + return 0; +} + static void __resort_source_line(struct rb_root *root, struct source_line *src_line) { struct source_line *iter; @@ -955,7 +979,7 @@ static void __resort_source_line(struct rb_root *root, struct source_line *src_l parent = *p; iter = rb_entry(parent, struct source_line, node); - if (src_line->p[0].percent_sum > iter->p[0].percent_sum) + if (cmp_source_line(src_line, iter)) p = &(*p)->rb_left; else p = &(*p)->rb_right; @@ -987,12 +1011,18 @@ static void symbol__free_source_line(struct symbol *sym, int len) { struct annotation *notes = symbol__annotation(sym); struct source_line *src_line = notes->src->lines; + size_t sizeof_src_line; int i; - for (i = 0; i < len; i++) - free(src_line[i].path); + sizeof_src_line = sizeof(*src_line) + + (sizeof(src_line->p) * (src_line->nr_pcnt - 1)); - free(src_line); + for (i = 0; i < len; i++) { + free(src_line->path); + src_line = (void *)src_line + sizeof_src_line; + } + + free(notes->src->lines); notes->src->lines = NULL; } @@ -1003,17 +1033,30 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map, const char *filename) { u64 start; - int i; + int i, k; + int evidx = evsel->idx; char cmd[PATH_MAX * 2]; struct source_line *src_line; struct annotation *notes = symbol__annotation(sym); - struct sym_hist *h = annotation__histogram(notes, evsel->idx); + struct sym_hist *h = annotation__histogram(notes, evidx); struct rb_root tmp_root = RB_ROOT; + int nr_pcnt = 1; + u64 h_sum = h->sum; + size_t sizeof_src_line = sizeof(struct source_line); + + if (perf_evsel__is_group_event(evsel)) { + for (i = 1; i < evsel->nr_members; i++) { + h = annotation__histogram(notes, evidx + i); + h_sum += h->sum; + } + nr_pcnt = evsel->nr_members; + sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p); + } - if (!h->sum) + if (!h_sum) return 0; - src_line = notes->src->lines = calloc(len, sizeof(struct source_line)); + src_line = notes->src->lines = calloc(len, sizeof_src_line); if (!notes->src->lines) return -1; @@ -1024,29 +1067,41 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map, size_t line_len; u64 offset; FILE *fp; + double percent_max = 0.0; - src_line[i].p[0].percent = 100.0 * h->addr[i] / h->sum; - if (src_line[i].p[0].percent <= 0.5) - continue; + src_line->nr_pcnt = nr_pcnt; + + for (k = 0; k < nr_pcnt; k++) { + h = annotation__histogram(notes, evidx + k); + src_line->p[k].percent = 100.0 * h->addr[i] / h->sum; + + if (src_line->p[k].percent > percent_max) + percent_max = src_line->p[k].percent; + } + + if (percent_max <= 0.5) + goto next; offset = start + i; sprintf(cmd, "addr2line -e %s %016" PRIx64, filename, offset); fp = popen(cmd, "r"); if (!fp) - continue; + goto next; if (getline(&path, &line_len, fp) < 0 || !line_len) - goto next; + goto next_close; - src_line[i].path = malloc(sizeof(char) * line_len + 1); - if (!src_line[i].path) - goto next; + src_line->path = malloc(sizeof(char) * line_len + 1); + if (!src_line->path) + goto next_close; - strcpy(src_line[i].path, path); - insert_source_line(&tmp_root, &src_line[i]); + strcpy(src_line->path, path); + insert_source_line(&tmp_root, src_line); - next: + next_close: pclose(fp); + next: + src_line = (void *)src_line + sizeof_src_line; } resort_source_line(root, &tmp_root); @@ -1068,16 +1123,25 @@ static void print_summary(struct rb_root *root, const char *filename) node = rb_first(root); while (node) { - double percent; + double percent, percent_max = 0.0; const char *color; char *path; + int i; src_line = rb_entry(node, struct source_line, node); - percent = src_line->p[0].percent_sum; - color = get_percent_color(percent); + for (i = 0; i < src_line->nr_pcnt; i++) { + percent = src_line->p[i].percent_sum; + color = get_percent_color(percent); + color_fprintf(stdout, color, " %7.2f", percent); + + if (percent > percent_max) + percent_max = percent; + } + path = src_line->path; + color = get_percent_color(percent_max); + color_fprintf(stdout, color, " %s", path); - color_fprintf(stdout, color, " %7.2f %s", percent, path); node = rb_next(node); } } diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index bb2e3f998983..68f851e6c685 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -82,6 +82,7 @@ struct source_line_percent { struct source_line { struct rb_node node; char *path; + int nr_pcnt; struct source_line_percent p[1]; }; -- cgit v1.2.3 From ab77df672cdbf7a0235a9de3289c173e2fce68e5 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:29 +0900 Subject: perf annotate browser: Make browser_disasm_line->percent an array Make percent field of struct browser_disasm_line an array and move it to the last. This is a preparation of event group view feature. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-10-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/annotate.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index cfae57f90146..62369f0b6608 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -14,10 +14,10 @@ struct browser_disasm_line { struct rb_node rb_node; - double percent; u32 idx; int idx_asm; int jump_sources; + double percent[1]; }; static struct annotate_browser_opt { @@ -97,9 +97,9 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int int width = browser->width, printed; char bf[256]; - if (dl->offset != -1 && bdl->percent != 0.0) { - ui_browser__set_percent_color(browser, bdl->percent, current_entry); - slsmg_printf("%6.2f ", bdl->percent); + if (dl->offset != -1 && bdl->percent[0] != 0.0) { + ui_browser__set_percent_color(browser, bdl->percent[0], current_entry); + slsmg_printf("%6.2f ", bdl->percent[0]); } else { ui_browser__set_percent_color(browser, 0, current_entry); slsmg_write_nstring(" ", 7); @@ -283,7 +283,7 @@ static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_l while (*p != NULL) { parent = *p; l = rb_entry(parent, struct browser_disasm_line, rb_node); - if (bdl->percent < l->percent) + if (bdl->percent[0] < l->percent[0]) p = &(*p)->rb_left; else p = &(*p)->rb_right; @@ -345,8 +345,8 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, list_for_each_entry(pos, ¬es->src->source, node) { struct browser_disasm_line *bpos = disasm_line__browser(pos); - bpos->percent = disasm_line__calc_percent(pos, sym, evsel->idx); - if (bpos->percent < 0.01) { + bpos->percent[0] = disasm_line__calc_percent(pos, sym, evsel->idx); + if (bpos->percent[0] < 0.01) { RB_CLEAR_NODE(&bpos->rb_node); continue; } -- cgit v1.2.3 From e64aa75bf5559be3ce72e53ae28b76a2f633ca06 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:30 +0900 Subject: perf annotate browser: Use disasm__calc_percent() The disasm_line__calc_percent() which was used by annotate browser code almost duplicates disasm__calc_percent. Let's get rid of the code duplication. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-11-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/annotate.c | 50 +++++++++++---------------------------- tools/perf/util/annotate.c | 4 ++-- tools/perf/util/annotate.h | 4 ++++ 3 files changed, 20 insertions(+), 38 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 62369f0b6608..8b16926dd56e 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -240,40 +240,6 @@ static unsigned int annotate_browser__refresh(struct ui_browser *browser) return ret; } -static double disasm_line__calc_percent(struct disasm_line *dl, struct symbol *sym, int evidx) -{ - double percent = 0.0; - - if (dl->offset != -1) { - int len = sym->end - sym->start; - unsigned int hits = 0; - struct annotation *notes = symbol__annotation(sym); - struct source_line *src_line = notes->src->lines; - struct sym_hist *h = annotation__histogram(notes, evidx); - s64 offset = dl->offset; - struct disasm_line *next; - - next = disasm__get_next_ip_line(¬es->src->source, dl); - while (offset < (s64)len && - (next == NULL || offset < next->offset)) { - if (src_line) { - percent += src_line[offset].p[0].percent; - } else - hits += h->addr[offset]; - - ++offset; - } - /* - * If the percentage wasn't already calculated in - * symbol__get_source_line, do it now: - */ - if (src_line == NULL && h->sum) - percent = 100.0 * hits / h->sum; - } - - return percent; -} - static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_line *bdl) { struct rb_node **p = &root->rb_node; @@ -337,7 +303,8 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, struct map_symbol *ms = browser->b.priv; struct symbol *sym = ms->sym; struct annotation *notes = symbol__annotation(sym); - struct disasm_line *pos; + struct disasm_line *pos, *next; + s64 len = symbol__size(sym); browser->entries = RB_ROOT; @@ -345,7 +312,18 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, list_for_each_entry(pos, ¬es->src->source, node) { struct browser_disasm_line *bpos = disasm_line__browser(pos); - bpos->percent[0] = disasm_line__calc_percent(pos, sym, evsel->idx); + const char *path = NULL; + + if (pos->offset == -1) { + RB_CLEAR_NODE(&bpos->rb_node); + continue; + } + + next = disasm__get_next_ip_line(¬es->src->source, pos); + bpos->percent[0] = disasm__calc_percent(notes, evsel->idx, + pos->offset, next ? next->offset : len, + &path); + if (bpos->percent[0] < 0.01) { RB_CLEAR_NODE(&bpos->rb_node); continue; diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 05e34df5d041..d102716c43a1 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -603,8 +603,8 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa return NULL; } -static double disasm__calc_percent(struct annotation *notes, int evidx, - s64 offset, s64 end, const char **path) +double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset, + s64 end, const char **path) { struct source_line *src_line = notes->src->lines; double percent = 0.0; diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 68f851e6c685..6f3c16f01ab4 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -50,6 +50,8 @@ bool ins__is_jump(const struct ins *ins); bool ins__is_call(const struct ins *ins); int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops); +struct annotation; + struct disasm_line { struct list_head node; s64 offset; @@ -68,6 +70,8 @@ void disasm_line__free(struct disasm_line *dl); struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos); int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw); size_t disasm__fprintf(struct list_head *head, FILE *fp); +double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset, + s64 end, const char **path); struct sym_hist { u64 sum; -- cgit v1.2.3 From d8d7cd93e6b5f42bd2ae77680b5dc27415ba7492 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 5 Mar 2013 14:53:32 +0900 Subject: perf annotate/gtk: Support event group view on GTK Add support for event group view to GTK annotation browser. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-13-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/gtk/annotate.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c index 6e2fc7e3f093..f538794615db 100644 --- a/tools/perf/ui/gtk/annotate.c +++ b/tools/perf/ui/gtk/annotate.c @@ -33,7 +33,7 @@ static int perf_gtk__get_percent(char *buf, size_t size, struct symbol *sym, return 0; symhist = annotation__histogram(symbol__annotation(sym), evidx); - if (!symhist->addr[dl->offset]) + if (!symbol_conf.event_group && !symhist->addr[dl->offset]) return 0; percent = 100.0 * symhist->addr[dl->offset] / symhist->sum; @@ -119,10 +119,24 @@ static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym, list_for_each_entry(pos, ¬es->src->source, node) { GtkTreeIter iter; + int ret = 0; gtk_list_store_append(store, &iter); - if (perf_gtk__get_percent(s, sizeof(s), sym, pos, evsel->idx)) + if (perf_evsel__is_group_event(evsel)) { + for (i = 0; i < evsel->nr_members; i++) { + ret += perf_gtk__get_percent(s + ret, + sizeof(s) - ret, + sym, pos, + evsel->idx + i); + ret += scnprintf(s + ret, sizeof(s) - ret, " "); + } + } else { + ret = perf_gtk__get_percent(s, sizeof(s), sym, pos, + evsel->idx); + } + + if (ret) gtk_list_store_set(store, &iter, ANN_COL__PERCENT, s, -1); if (perf_gtk__get_offset(s, sizeof(s), sym, map, pos)) gtk_list_store_set(store, &iter, ANN_COL__OFFSET, s, -1); -- cgit v1.2.3 From c7e7b6101361025fbea03833c6aee18e3d7bed34 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Sat, 10 Nov 2012 01:21:02 +0900 Subject: perf annotate browser: Support event group view on TUI Dynamically allocate browser_disasm_line according to a number of group members. This way we can handle multiple events in a general manner. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/878v5tl2vc.fsf@sejong.aot.lge.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/annotate.c | 93 +++++++++++++++++++++++++++++++-------- 1 file changed, 75 insertions(+), 18 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 8b16926dd56e..f56247a03a22 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -17,6 +17,10 @@ struct browser_disasm_line { u32 idx; int idx_asm; int jump_sources; + /* + * actual length of this array is saved on the nr_events field + * of the struct annotate_browser + */ double percent[1]; }; @@ -34,8 +38,9 @@ struct annotate_browser { struct ui_browser b; struct rb_root entries; struct rb_node *curr_hot; - struct disasm_line *selection; + struct disasm_line *selection; struct disasm_line **offsets; + int nr_events; u64 start; int nr_asm_entries; int nr_entries; @@ -95,14 +100,24 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int (!current_entry || (browser->use_navkeypressed && !browser->navkeypressed))); int width = browser->width, printed; + int i, pcnt_width = 7 * ab->nr_events; + double percent_max = 0.0; char bf[256]; - if (dl->offset != -1 && bdl->percent[0] != 0.0) { - ui_browser__set_percent_color(browser, bdl->percent[0], current_entry); - slsmg_printf("%6.2f ", bdl->percent[0]); + for (i = 0; i < ab->nr_events; i++) { + if (bdl->percent[i] > percent_max) + percent_max = bdl->percent[i]; + } + + if (dl->offset != -1 && percent_max != 0.0) { + for (i = 0; i < ab->nr_events; i++) { + ui_browser__set_percent_color(browser, bdl->percent[i], + current_entry); + slsmg_printf("%6.2f ", bdl->percent[i]); + } } else { ui_browser__set_percent_color(browser, 0, current_entry); - slsmg_write_nstring(" ", 7); + slsmg_write_nstring(" ", pcnt_width); } SLsmg_write_char(' '); @@ -112,12 +127,12 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int width += 1; if (!*dl->line) - slsmg_write_nstring(" ", width - 7); + slsmg_write_nstring(" ", width - pcnt_width); else if (dl->offset == -1) { printed = scnprintf(bf, sizeof(bf), "%*s ", ab->addr_width, " "); slsmg_write_nstring(bf, printed); - slsmg_write_nstring(dl->line, width - printed - 6); + slsmg_write_nstring(dl->line, width - printed - pcnt_width + 1); } else { u64 addr = dl->offset; int color = -1; @@ -176,7 +191,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int } disasm_line__scnprintf(dl, bf, sizeof(bf), !annotate_browser__opts.use_offset); - slsmg_write_nstring(bf, width - 10 - printed); + slsmg_write_nstring(bf, width - pcnt_width - 3 - printed); } if (current_entry) @@ -201,6 +216,7 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser) unsigned int from, to; struct map_symbol *ms = ab->b.priv; struct symbol *sym = ms->sym; + u8 pcnt_width = 7; /* PLT symbols contain external offsets */ if (strstr(sym->name, "@plt")) @@ -224,23 +240,44 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser) to = (u64)btarget->idx; } + pcnt_width *= ab->nr_events; + ui_browser__set_color(browser, HE_COLORSET_CODE); - __ui_browser__line_arrow(browser, 9 + ab->addr_width, from, to); + __ui_browser__line_arrow(browser, pcnt_width + 2 + ab->addr_width, + from, to); } static unsigned int annotate_browser__refresh(struct ui_browser *browser) { + struct annotate_browser *ab = container_of(browser, struct annotate_browser, b); int ret = ui_browser__list_head_refresh(browser); + int pcnt_width; + + pcnt_width = 7 * ab->nr_events; if (annotate_browser__opts.jump_arrows) annotate_browser__draw_current_jump(browser); ui_browser__set_color(browser, HE_COLORSET_NORMAL); - __ui_browser__vline(browser, 7, 0, browser->height - 1); + __ui_browser__vline(browser, pcnt_width, 0, browser->height - 1); return ret; } -static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_line *bdl) +static int disasm__cmp(struct browser_disasm_line *a, + struct browser_disasm_line *b, int nr_pcnt) +{ + int i; + + for (i = 0; i < nr_pcnt; i++) { + if (a->percent[i] == b->percent[i]) + continue; + return a->percent[i] < b->percent[i]; + } + return 0; +} + +static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_line *bdl, + int nr_events) { struct rb_node **p = &root->rb_node; struct rb_node *parent = NULL; @@ -249,7 +286,8 @@ static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_l while (*p != NULL) { parent = *p; l = rb_entry(parent, struct browser_disasm_line, rb_node); - if (bdl->percent[0] < l->percent[0]) + + if (disasm__cmp(bdl, l, nr_events)) p = &(*p)->rb_left; else p = &(*p)->rb_right; @@ -313,6 +351,8 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, list_for_each_entry(pos, ¬es->src->source, node) { struct browser_disasm_line *bpos = disasm_line__browser(pos); const char *path = NULL; + double max_percent = 0.0; + int i; if (pos->offset == -1) { RB_CLEAR_NODE(&bpos->rb_node); @@ -320,15 +360,24 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser, } next = disasm__get_next_ip_line(¬es->src->source, pos); - bpos->percent[0] = disasm__calc_percent(notes, evsel->idx, - pos->offset, next ? next->offset : len, - &path); - if (bpos->percent[0] < 0.01) { + for (i = 0; i < browser->nr_events; i++) { + bpos->percent[i] = disasm__calc_percent(notes, + evsel->idx + i, + pos->offset, + next ? next->offset : len, + &path); + + if (max_percent < bpos->percent[i]) + max_percent = bpos->percent[i]; + } + + if (max_percent < 0.01) { RB_CLEAR_NODE(&bpos->rb_node); continue; } - disasm_rb_tree__insert(&browser->entries, bpos); + disasm_rb_tree__insert(&browser->entries, bpos, + browser->nr_events); } pthread_mutex_unlock(¬es->lock); @@ -829,6 +878,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, }, }; int ret = -1; + int nr_pcnt = 1; + size_t sizeof_bdl = sizeof(struct browser_disasm_line); if (sym == NULL) return -1; @@ -844,7 +895,12 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, return -1; } - if (symbol__annotate(sym, map, sizeof(struct browser_disasm_line)) < 0) { + if (perf_evsel__is_group_event(evsel)) { + nr_pcnt = evsel->nr_members; + sizeof_bdl += sizeof(double) * (nr_pcnt - 1); + } + + if (symbol__annotate(sym, map, sizeof_bdl) < 0) { ui__error("%s", ui_helpline__last_msg); goto out_free_offsets; } @@ -882,6 +938,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, browser.addr_width = browser.target_width = browser.min_addr_width = hex_width(size); browser.max_addr_width = hex_width(sym->end); browser.jumps_width = width_jumps(browser.max_jump_sources); + browser.nr_events = nr_pcnt; browser.b.nr_entries = browser.nr_entries; browser.b.entries = ¬es->src->source, browser.b.width += 18; /* Percentage */ -- cgit v1.2.3 From 0d7f5b57a4373993121df4b4216e9628233b075b Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 12 Mar 2013 13:59:20 +0900 Subject: perf trace: Get rid of a duplicate code Checking of sample.raw_data is duplicated and seems an artifact of some git auto merging stuff. Kill it. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363064360-7641-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index f0c20ef0cd1c..49fedb51d569 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -527,13 +527,6 @@ again: continue; } - if (sample.raw_data == NULL) { - printf("%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", - perf_evsel__name(evsel), sample.tid, - sample.cpu, sample.raw_size); - continue; - } - handler = evsel->handler.func; handler(trace, evsel, &sample); } -- cgit v1.2.3 From eba7181d56da7e8198f0c70e3d7074bab47a5910 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 12 Mar 2013 23:07:26 -0600 Subject: perf tools: Remove unused tracing functions Leftovers from before libtraceevent integration. Signed-off-by: David Ahern Link: http://lkml.kernel.org/r/1363151248-16674-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-parse.c | 37 ------------------------------------- tools/perf/util/trace-event.h | 4 ---- 2 files changed, 41 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index 3aabcd687cd5..4454835a9ebc 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -183,43 +183,6 @@ void event_format__print(struct event_format *event, trace_seq_do_printf(&s); } -void print_trace_event(struct pevent *pevent, int cpu, void *data, int size) -{ - int type = trace_parse_common_type(pevent, data); - struct event_format *event = pevent_find_event(pevent, type); - - if (!event) { - warning("ug! no event found for type %d", type); - return; - } - - event_format__print(event, cpu, data, size); -} - -void print_event(struct pevent *pevent, int cpu, void *data, int size, - unsigned long long nsecs, char *comm) -{ - struct pevent_record record; - struct trace_seq s; - int pid; - - pevent->latency_format = latency_format; - - record.ts = nsecs; - record.cpu = cpu; - record.size = size; - record.data = data; - pid = pevent_data_pid(pevent, &record); - - if (!pevent_pid_is_registered(pevent, pid)) - pevent_register_comm(pevent, comm, pid); - - trace_seq_init(&s); - pevent_print_event(pevent, &s, &record); - trace_seq_do_printf(&s); - printf("\n"); -} - void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size __maybe_unused) { diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index a55fd37ffea1..28ccde8ba20f 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -30,13 +30,9 @@ enum { int bigendian(void); struct pevent *read_trace_init(int file_bigendian, int host_bigendian); -void print_trace_event(struct pevent *pevent, int cpu, void *data, int size); void event_format__print(struct event_format *event, int cpu, void *data, int size); -void print_event(struct pevent *pevent, int cpu, void *data, int size, - unsigned long long nsecs, char *comm); - int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size); int parse_event_file(struct pevent *pevent, char *buf, unsigned long size, char *sys); -- cgit v1.2.3 From c1ad050caad5fbff13fd2f54f49e184bd71de90d Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 12 Mar 2013 23:07:27 -0600 Subject: perf session: Remove unused perf_session__remove_thread method Should have been removed on this changeset, that removed the last user of it: 743eb868657bdb1b26c7b24077ca21c67c82c777 perf tools: Resolve machine earlier and pass it to perf_event_ops Signed-off-by: David Ahern Link: http://lkml.kernel.org/r/1363151248-16674-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 12 ------------ tools/perf/util/session.h | 1 - 2 files changed, 13 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index bd85280bb6e8..ab265c2cfab3 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1365,18 +1365,6 @@ size_t perf_session__fprintf(struct perf_session *session, FILE *fp) return machine__fprintf(&session->machines.host, fp); } -void perf_session__remove_thread(struct perf_session *session, - struct thread *th) -{ - /* - * FIXME: This one makes no sense, we need to remove the thread from - * the machine it belongs to, perf_session can have many machines, so - * doing it always on ->machines.host is wrong. Fix when auditing all - * the 'perf kvm' code. - */ - machine__remove_thread(&session->machines.host, th); -} - struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, unsigned int type) { diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index b5c0847edfa9..6b51d47acdba 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -72,7 +72,6 @@ void perf_event__attr_swap(struct perf_event_attr *attr); int perf_session__create_kernel_maps(struct perf_session *self); void perf_session__set_id_hdr_size(struct perf_session *session); -void perf_session__remove_thread(struct perf_session *self, struct thread *th); static inline struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid) -- cgit v1.2.3 From ed8996a6d59b9eb00a50d7d30887ba9f28eb4bb0 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 12 Mar 2013 23:07:28 -0600 Subject: perf machine: Move machine__remove_thread and make static As the now only user, machine__process_exit_event, that is what tools use to process PERF_RECORD_EXIT events, is on the same object file. Signed-off-by: David Ahern Link: http://lkml.kernel.org/r/1363151248-16674-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 22 +++++++++++----------- tools/perf/util/machine.h | 1 - 2 files changed, 11 insertions(+), 12 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index efdb38e65a92..c5e3b123782b 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1003,6 +1003,17 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event return 0; } +static void machine__remove_thread(struct machine *machine, struct thread *th) +{ + machine->last_match = NULL; + rb_erase(&th->rb_node, &machine->threads); + /* + * We may have references to this thread, for instance in some hist_entry + * instances, so just move them to a separate list. + */ + list_add_tail(&th->node, &machine->dead_threads); +} + int machine__process_exit_event(struct machine *machine, union perf_event *event) { struct thread *thread = machine__find_thread(machine, event->fork.tid); @@ -1039,17 +1050,6 @@ int machine__process_event(struct machine *machine, union perf_event *event) return ret; } -void machine__remove_thread(struct machine *machine, struct thread *th) -{ - machine->last_match = NULL; - rb_erase(&th->rb_node, &machine->threads); - /* - * We may have references to this thread, for instance in some hist_entry - * instances, so just move them to a separate list. - */ - list_add_tail(&th->node, &machine->dead_threads); -} - static bool symbol__match_parent_regex(struct symbol *sym) { if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 5ac5892f2326..e0b2c00b2e75 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -97,7 +97,6 @@ static inline bool machine__is_host(struct machine *machine) } struct thread *machine__findnew_thread(struct machine *machine, pid_t pid); -void machine__remove_thread(struct machine *machine, struct thread *th); size_t machine__fprintf(struct machine *machine, FILE *fp); -- cgit v1.2.3 From db3c6bf811581c626471a6aecdf0024575b707d7 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 13 Mar 2013 12:24:42 +0800 Subject: perf report: Remove duplicated include Signed-off-by: Wei Yongjun Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/CAPgLHd9=EXaH1hv4jeVvTa4tZFsjnx+8+g3zqmmUKqQ5qRqTEA@mail.gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-report.c | 1 - 1 file changed, 1 deletion(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 3f4a79ba5ada..296bd219977a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -13,7 +13,6 @@ #include "util/annotate.h" #include "util/color.h" #include -#include "util/cache.h" #include #include "util/symbol.h" #include "util/callchain.h" -- cgit v1.2.3 From f3ff40ec8d92b36e60ebbbdb604ffeb5cfe6545f Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 13 Mar 2013 20:19:40 +0900 Subject: perf tools: Remove unused trace_read_data function And functions that called only from the trace_read_data(). Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363173585-9754-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-read.c | 201 ------------------------------------- 1 file changed, 201 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index 3741572696af..7cb24635adf2 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -41,8 +41,6 @@ static int input_fd; -static int read_page; - int file_bigendian; int host_bigendian; static int long_size; @@ -287,205 +285,6 @@ static void read_event_files(struct pevent *pevent) } } -struct cpu_data { - unsigned long long offset; - unsigned long long size; - unsigned long long timestamp; - struct pevent_record *next; - char *page; - int cpu; - int index; - int page_size; -}; - -static struct cpu_data *cpu_data; - -static void update_cpu_data_index(int cpu) -{ - cpu_data[cpu].offset += page_size; - cpu_data[cpu].size -= page_size; - cpu_data[cpu].index = 0; -} - -static void get_next_page(int cpu) -{ - off_t save_seek; - off_t ret; - - if (!cpu_data[cpu].page) - return; - - if (read_page) { - if (cpu_data[cpu].size <= page_size) { - free(cpu_data[cpu].page); - cpu_data[cpu].page = NULL; - return; - } - - update_cpu_data_index(cpu); - - /* other parts of the code may expect the pointer to not move */ - save_seek = lseek(input_fd, 0, SEEK_CUR); - - ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET); - if (ret == (off_t)-1) - die("failed to lseek"); - ret = read(input_fd, cpu_data[cpu].page, page_size); - if (ret < 0) - die("failed to read page"); - - /* reset the file pointer back */ - lseek(input_fd, save_seek, SEEK_SET); - - return; - } - - munmap(cpu_data[cpu].page, page_size); - cpu_data[cpu].page = NULL; - - if (cpu_data[cpu].size <= page_size) - return; - - update_cpu_data_index(cpu); - - cpu_data[cpu].page = mmap(NULL, page_size, PROT_READ, MAP_PRIVATE, - input_fd, cpu_data[cpu].offset); - if (cpu_data[cpu].page == MAP_FAILED) - die("failed to mmap cpu %d at offset 0x%llx", - cpu, cpu_data[cpu].offset); -} - -static unsigned int type_len4host(unsigned int type_len_ts) -{ - if (file_bigendian) - return (type_len_ts >> 27) & ((1 << 5) - 1); - else - return type_len_ts & ((1 << 5) - 1); -} - -static unsigned int ts4host(unsigned int type_len_ts) -{ - if (file_bigendian) - return type_len_ts & ((1 << 27) - 1); - else - return type_len_ts >> 5; -} - -static int calc_index(void *ptr, int cpu) -{ - return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page; -} - -struct pevent_record *trace_peek_data(struct pevent *pevent, int cpu) -{ - struct pevent_record *data; - void *page = cpu_data[cpu].page; - int idx = cpu_data[cpu].index; - void *ptr = page + idx; - unsigned long long extend; - unsigned int type_len_ts; - unsigned int type_len; - unsigned int delta; - unsigned int length = 0; - - if (cpu_data[cpu].next) - return cpu_data[cpu].next; - - if (!page) - return NULL; - - if (!idx) { - /* FIXME: handle header page */ - if (header_page_ts_size != 8) - die("expected a long long type for timestamp"); - cpu_data[cpu].timestamp = data2host8(pevent, ptr); - ptr += 8; - switch (header_page_size_size) { - case 4: - cpu_data[cpu].page_size = data2host4(pevent, ptr); - ptr += 4; - break; - case 8: - cpu_data[cpu].page_size = data2host8(pevent, ptr); - ptr += 8; - break; - default: - die("bad long size"); - } - ptr = cpu_data[cpu].page + header_page_data_offset; - } - -read_again: - idx = calc_index(ptr, cpu); - - if (idx >= cpu_data[cpu].page_size) { - get_next_page(cpu); - return trace_peek_data(pevent, cpu); - } - - type_len_ts = data2host4(pevent, ptr); - ptr += 4; - - type_len = type_len4host(type_len_ts); - delta = ts4host(type_len_ts); - - switch (type_len) { - case RINGBUF_TYPE_PADDING: - if (!delta) - die("error, hit unexpected end of page"); - length = data2host4(pevent, ptr); - ptr += 4; - length *= 4; - ptr += length; - goto read_again; - - case RINGBUF_TYPE_TIME_EXTEND: - extend = data2host4(pevent, ptr); - ptr += 4; - extend <<= TS_SHIFT; - extend += delta; - cpu_data[cpu].timestamp += extend; - goto read_again; - - case RINGBUF_TYPE_TIME_STAMP: - ptr += 12; - break; - case 0: - length = data2host4(pevent, ptr); - ptr += 4; - die("here! length=%d", length); - break; - default: - length = type_len * 4; - break; - } - - cpu_data[cpu].timestamp += delta; - - data = malloc_or_die(sizeof(*data)); - memset(data, 0, sizeof(*data)); - - data->ts = cpu_data[cpu].timestamp; - data->size = length; - data->data = ptr; - ptr += length; - - cpu_data[cpu].index = calc_index(ptr, cpu); - cpu_data[cpu].next = data; - - return data; -} - -struct pevent_record *trace_read_data(struct pevent *pevent, int cpu) -{ - struct pevent_record *data; - - data = trace_peek_data(pevent, cpu); - cpu_data[cpu].next = NULL; - - return data; -} - ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe) { char buf[BUFSIZ]; -- cgit v1.2.3 From d301de830d89454a47947e9a3851708e8f3a8822 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 13 Mar 2013 20:19:41 +0900 Subject: perf tools: Remove unused struct definitions struct event_list and struct events are never used. Just get rid of them. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363173585-9754-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-info.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 5c1509ab0c29..b0bbd76f4a56 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -55,18 +55,6 @@ unsigned int page_size; static const char *output_file = "trace.info"; static int output_fd; -struct event_list { - struct event_list *next; - const char *event; -}; - -struct events { - struct events *sibling; - struct events *children; - struct events *next; - char *name; -}; - static void *malloc_or_die(unsigned int size) { -- cgit v1.2.3 From 024b13082e9d4a50f2d39c5fe2d1179261e7aa22 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 13 Mar 2013 20:19:42 +0900 Subject: perf tools: Remove unnecessary calc_data_size variable It's not set from anywhere so no need to keep it. Looks like an unneeded copy of the same variable in trace-event-read.c Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363173585-9754-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-info.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index b0bbd76f4a56..783ab51e3ff7 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -119,17 +119,10 @@ static void put_tracing_file(char *file) free(file); } -static ssize_t calc_data_size; - static ssize_t write_or_die(const void *buf, size_t len) { int ret; - if (calc_data_size) { - calc_data_size += len; - return len; - } - ret = write(output_fd, buf, len); if (ret < 0) die("writing to '%s'", output_file); -- cgit v1.2.3 From e5f5e5ee78457198184abf3e43d95ea0fab21272 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 13 Mar 2013 20:19:43 +0900 Subject: perf tools: Remove unused macro definitions They're never used and looks like leftovers from the porting of trace-cmd code. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363173585-9754-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-info.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 783ab51e3ff7..3c452b587daa 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -43,13 +43,6 @@ #define VERSION "0.5" -#define TRACE_CTRL "tracing_on" -#define TRACE "trace" -#define AVAILABLE "available_tracers" -#define CURRENT "current_tracer" -#define ITER_CTRL "trace_options" -#define MAX_LATENCY "tracing_max_latency" - unsigned int page_size; static const char *output_file = "trace.info"; -- cgit v1.2.3 From 45fa534cffb246872de0cb8af207bea4a09aeb2f Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 13 Mar 2013 20:19:44 +0900 Subject: perf tools: Remove duplicated page_size definition It's defined in util/util.c and gets set from the begining of perf run. No need to duplicate it. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363173585-9754-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-info.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 3c452b587daa..5729f434c5b1 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -43,8 +43,6 @@ #define VERSION "0.5" -unsigned int page_size; - static const char *output_file = "trace.info"; static int output_fd; @@ -431,7 +429,6 @@ static void tracing_data_header(void) write_or_die(buf, 1); /* save page_size */ - page_size = sysconf(_SC_PAGESIZE); write_or_die(&page_size, 4); } -- cgit v1.2.3 From 5a6bef47b418676546ab86d25631c3cfb9ffaf2a Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 10 Mar 2013 19:41:10 +0100 Subject: perf tests: Test breakpoint overflow signal handler Adding automated test for breakpoint event signal handler checking if it's executed properly. The test is related to the proper handling of the RF EFLAGS bit on x86_64, but it's generic for all archs. First we check the signal handler is properly called and that the following debug exception return to user space wouldn't trigger recursive breakpoint. This is related to x86_64 RF EFLAGS bit being managed in a wrong way. Second we check that we can set breakpoint in signal handler, which is not possible on x86_64 if the signal handler is executed with RF EFLAG set. This test is inpired by overflow tests done by Vince Weaver. Signed-off-by: Jiri Olsa Cc: "H. Peter Anvin" Cc: Andi Kleen Cc: Corey Ashford Cc: Frederic Weisbecker Cc: H. Peter Anvin Cc: Ingo Molnar Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Link: http://lkml.kernel.org/r/1362940871-24486-6-git-send-email-jolsa@redhat.com [ committer note: s/pr_err/pr_debug/g i.e. print just OK or FAILED in non verbose mode ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 1 + tools/perf/tests/bp_signal.c | 186 ++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/builtin-test.c | 4 + tools/perf/tests/tests.h | 1 + 4 files changed, 192 insertions(+) create mode 100644 tools/perf/tests/bp_signal.c (limited to 'tools/perf') diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 3dcd6273a90b..21e0b4b04465 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -511,6 +511,7 @@ LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o LIB_OBJS += $(OUTPUT)tests/pmu.o LIB_OBJS += $(OUTPUT)tests/hists_link.o LIB_OBJS += $(OUTPUT)tests/python-use.o +LIB_OBJS += $(OUTPUT)tests/bp_signal.o BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c new file mode 100644 index 000000000000..68daa289e94c --- /dev/null +++ b/tools/perf/tests/bp_signal.c @@ -0,0 +1,186 @@ +/* + * Inspired by breakpoint overflow test done by + * Vince Weaver for perf_event_tests + * (git://github.com/deater/perf_event_tests) + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tests.h" +#include "debug.h" +#include "perf.h" + +static int fd1; +static int fd2; +static int overflows; + +__attribute__ ((noinline)) +static int test_function(void) +{ + return time(NULL); +} + +static void sig_handler(int signum __maybe_unused, + siginfo_t *oh __maybe_unused, + void *uc __maybe_unused) +{ + overflows++; + + if (overflows > 10) { + /* + * This should be executed only once during + * this test, if we are here for the 10th + * time, consider this the recursive issue. + * + * We can get out of here by disable events, + * so no new SIGIO is delivered. + */ + ioctl(fd1, PERF_EVENT_IOC_DISABLE, 0); + ioctl(fd2, PERF_EVENT_IOC_DISABLE, 0); + } +} + +static int bp_event(void *fn, int setup_signal) +{ + struct perf_event_attr pe; + int fd; + + memset(&pe, 0, sizeof(struct perf_event_attr)); + pe.type = PERF_TYPE_BREAKPOINT; + pe.size = sizeof(struct perf_event_attr); + + pe.config = 0; + pe.bp_type = HW_BREAKPOINT_X; + pe.bp_addr = (unsigned long) fn; + pe.bp_len = sizeof(long); + + pe.sample_period = 1; + pe.sample_type = PERF_SAMPLE_IP; + pe.wakeup_events = 1; + + pe.disabled = 1; + pe.exclude_kernel = 1; + pe.exclude_hv = 1; + + fd = sys_perf_event_open(&pe, 0, -1, -1, 0); + if (fd < 0) { + pr_debug("failed opening event %llx\n", pe.config); + return TEST_FAIL; + } + + if (setup_signal) { + fcntl(fd, F_SETFL, O_RDWR|O_NONBLOCK|O_ASYNC); + fcntl(fd, F_SETSIG, SIGIO); + fcntl(fd, F_SETOWN, getpid()); + } + + ioctl(fd, PERF_EVENT_IOC_RESET, 0); + + return fd; +} + +static long long bp_count(int fd) +{ + long long count; + int ret; + + ret = read(fd, &count, sizeof(long long)); + if (ret != sizeof(long long)) { + pr_debug("failed to read: %d\n", ret); + return TEST_FAIL; + } + + return count; +} + +int test__bp_signal(void) +{ + struct sigaction sa; + long long count1, count2; + + /* setup SIGIO signal handler */ + memset(&sa, 0, sizeof(struct sigaction)); + sa.sa_sigaction = (void *) sig_handler; + sa.sa_flags = SA_SIGINFO; + + if (sigaction(SIGIO, &sa, NULL) < 0) { + pr_debug("failed setting up signal handler\n"); + return TEST_FAIL; + } + + /* + * We create following events: + * + * fd1 - breakpoint event on test_function with SIGIO + * signal configured. We should get signal + * notification each time the breakpoint is hit + * + * fd2 - breakpoint event on sig_handler without SIGIO + * configured. + * + * Following processing should happen: + * - execute test_function + * - fd1 event breakpoint hit -> count1 == 1 + * - SIGIO is delivered -> overflows == 1 + * - fd2 event breakpoint hit -> count2 == 1 + * + * The test case check following error conditions: + * - we get stuck in signal handler because of debug + * exception being triggered receursively due to + * the wrong RF EFLAG management + * + * - we never trigger the sig_handler breakpoint due + * to the rong RF EFLAG management + * + */ + + fd1 = bp_event(test_function, 1); + fd2 = bp_event(sig_handler, 0); + + ioctl(fd1, PERF_EVENT_IOC_ENABLE, 0); + ioctl(fd2, PERF_EVENT_IOC_ENABLE, 0); + + /* + * Kick off the test by trigering 'fd1' + * breakpoint. + */ + test_function(); + + ioctl(fd1, PERF_EVENT_IOC_DISABLE, 0); + ioctl(fd2, PERF_EVENT_IOC_DISABLE, 0); + + count1 = bp_count(fd1); + count2 = bp_count(fd2); + + close(fd1); + close(fd2); + + pr_debug("count1 %lld, count2 %lld, overflow %d\n", + count1, count2, overflows); + + if (count1 != 1) { + if (count1 == 11) + pr_debug("failed: RF EFLAG recursion issue detected\n"); + else + pr_debug("failed: wrong count for bp1%lld\n", count1); + } + + if (overflows != 1) + pr_debug("failed: wrong overflow hit\n"); + + if (count2 != 1) + pr_debug("failed: wrong count for bp2\n"); + + return count1 == 1 && overflows == 1 && count2 == 1 ? + TEST_OK : TEST_FAIL; +} diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index acb98e0e39f2..37b108bf973c 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -77,6 +77,10 @@ static struct test { .desc = "Try 'use perf' in python, checking link problems", .func = test__python_use, }, + { + .desc = "Test breakpoint overflow signal handler", + .func = test__bp_signal, + }, { .func = NULL, }, diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 5de0be1ff4b6..05d0e58064a3 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -23,5 +23,6 @@ int test__dso_data(void); int test__parse_events(void); int test__hists_link(void); int test__python_use(void); +int test__bp_signal(void); #endif /* TESTS_H */ -- cgit v1.2.3 From 06933e3a732bb305b0721f1051a45264588e0519 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 10 Mar 2013 19:41:11 +0100 Subject: perf tests: Test breakpoint overflow signal handler counts Adding automated test to check the exact number of breakpoint event overflows and counts. This test was originally done by Vince Weaver for perf_event_tests. Signed-off-by: Jiri Olsa Cc: "H. Peter Anvin" Cc: Andi Kleen Cc: Corey Ashford Cc: Frederic Weisbecker Cc: H. Peter Anvin Cc: Ingo Molnar Cc: Oleg Nesterov Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Link: http://lkml.kernel.org/r/1362940871-24486-7-git-send-email-jolsa@redhat.com [ committer note: s/pr_err/pr_debug/g i.e. print just OK or FAILED in non verbose mode ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 1 + tools/perf/tests/bp_signal_overflow.c | 126 ++++++++++++++++++++++++++++++++++ tools/perf/tests/builtin-test.c | 4 ++ tools/perf/tests/tests.h | 1 + 4 files changed, 132 insertions(+) create mode 100644 tools/perf/tests/bp_signal_overflow.c (limited to 'tools/perf') diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 21e0b4b04465..990e9a113190 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -512,6 +512,7 @@ LIB_OBJS += $(OUTPUT)tests/pmu.o LIB_OBJS += $(OUTPUT)tests/hists_link.o LIB_OBJS += $(OUTPUT)tests/python-use.o LIB_OBJS += $(OUTPUT)tests/bp_signal.o +LIB_OBJS += $(OUTPUT)tests/bp_signal_overflow.o BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c new file mode 100644 index 000000000000..fe7ed28815f8 --- /dev/null +++ b/tools/perf/tests/bp_signal_overflow.c @@ -0,0 +1,126 @@ +/* + * Originally done by Vince Weaver for + * perf_event_tests (git://github.com/deater/perf_event_tests) + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tests.h" +#include "debug.h" +#include "perf.h" + +static int overflows; + +__attribute__ ((noinline)) +static int test_function(void) +{ + return time(NULL); +} + +static void sig_handler(int signum __maybe_unused, + siginfo_t *oh __maybe_unused, + void *uc __maybe_unused) +{ + overflows++; +} + +static long long bp_count(int fd) +{ + long long count; + int ret; + + ret = read(fd, &count, sizeof(long long)); + if (ret != sizeof(long long)) { + pr_debug("failed to read: %d\n", ret); + return TEST_FAIL; + } + + return count; +} + +#define EXECUTIONS 10000 +#define THRESHOLD 100 + +int test__bp_signal_overflow(void) +{ + struct perf_event_attr pe; + struct sigaction sa; + long long count; + int fd, i, fails = 0; + + /* setup SIGIO signal handler */ + memset(&sa, 0, sizeof(struct sigaction)); + sa.sa_sigaction = (void *) sig_handler; + sa.sa_flags = SA_SIGINFO; + + if (sigaction(SIGIO, &sa, NULL) < 0) { + pr_debug("failed setting up signal handler\n"); + return TEST_FAIL; + } + + memset(&pe, 0, sizeof(struct perf_event_attr)); + pe.type = PERF_TYPE_BREAKPOINT; + pe.size = sizeof(struct perf_event_attr); + + pe.config = 0; + pe.bp_type = HW_BREAKPOINT_X; + pe.bp_addr = (unsigned long) test_function; + pe.bp_len = sizeof(long); + + pe.sample_period = THRESHOLD; + pe.sample_type = PERF_SAMPLE_IP; + pe.wakeup_events = 1; + + pe.disabled = 1; + pe.exclude_kernel = 1; + pe.exclude_hv = 1; + + fd = sys_perf_event_open(&pe, 0, -1, -1, 0); + if (fd < 0) { + pr_debug("failed opening event %llx\n", pe.config); + return TEST_FAIL; + } + + fcntl(fd, F_SETFL, O_RDWR|O_NONBLOCK|O_ASYNC); + fcntl(fd, F_SETSIG, SIGIO); + fcntl(fd, F_SETOWN, getpid()); + + ioctl(fd, PERF_EVENT_IOC_RESET, 0); + ioctl(fd, PERF_EVENT_IOC_ENABLE, 0); + + for (i = 0; i < EXECUTIONS; i++) + test_function(); + + ioctl(fd, PERF_EVENT_IOC_DISABLE, 0); + + count = bp_count(fd); + + close(fd); + + pr_debug("count %lld, overflow %d\n", + count, overflows); + + if (count != EXECUTIONS) { + pr_debug("\tWrong number of executions %lld != %d\n", + count, EXECUTIONS); + fails++; + } + + if (overflows != EXECUTIONS / THRESHOLD) { + pr_debug("\tWrong number of overflows %d != %d\n", + overflows, EXECUTIONS / THRESHOLD); + fails++; + } + + return fails ? TEST_FAIL : TEST_OK; +} diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 37b108bf973c..45d9ad442d56 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -81,6 +81,10 @@ static struct test { .desc = "Test breakpoint overflow signal handler", .func = test__bp_signal, }, + { + .desc = "Test breakpoint overflow sampling", + .func = test__bp_signal_overflow, + }, { .func = NULL, }, diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 05d0e58064a3..6cf1ec4866d3 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -24,5 +24,6 @@ int test__parse_events(void); int test__hists_link(void); int test__python_use(void); int test__bp_signal(void); +int test__bp_signal_overflow(void); #endif /* TESTS_H */ -- cgit v1.2.3 From 736b05a0462aff65140865bacd5e04d1813e73e1 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:49 +0900 Subject: perf evsel: Cleanup perf_evsel__exit() Use perf_evsel__free_* because they do the same thing and ensures the pointer has NULL value at the end. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index dc16231f7a5d..7fde9fb79966 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -673,9 +673,8 @@ void perf_evsel__free_counts(struct perf_evsel *evsel) void perf_evsel__exit(struct perf_evsel *evsel) { assert(list_empty(&evsel->node)); - xyarray__delete(evsel->fd); - xyarray__delete(evsel->sample_id); - free(evsel->id); + perf_evsel__free_fd(evsel); + perf_evsel__free_id(evsel); } void perf_evsel__delete(struct perf_evsel *evsel) -- cgit v1.2.3 From a74b4b66cc027110272a18cd50cc6ee93483e78d Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:48 +0900 Subject: perf evlist: Introduce perf_evlist__close() It's a pair of perf_evlist__open(). Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evlist.c | 19 ++++++++++++------- tools/perf/util/evlist.h | 1 + 2 files changed, 13 insertions(+), 7 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 5b012b8d7a14..1344fbd2472e 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -721,10 +721,20 @@ void perf_evlist__set_selected(struct perf_evlist *evlist, evlist->selected = evsel; } +void perf_evlist__close(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel; + int ncpus = cpu_map__nr(evlist->cpus); + int nthreads = thread_map__nr(evlist->threads); + + list_for_each_entry_reverse(evsel, &evlist->entries, node) + perf_evsel__close(evsel, ncpus, nthreads); +} + int perf_evlist__open(struct perf_evlist *evlist) { struct perf_evsel *evsel; - int err, ncpus, nthreads; + int err; list_for_each_entry(evsel, &evlist->entries, node) { err = perf_evsel__open(evsel, evlist->cpus, evlist->threads); @@ -734,12 +744,7 @@ int perf_evlist__open(struct perf_evlist *evlist) return 0; out_err: - ncpus = cpu_map__nr(evlist->cpus); - nthreads = thread_map__nr(evlist->threads); - - list_for_each_entry_reverse(evsel, &evlist->entries, node) - perf_evsel__close(evsel, ncpus, nthreads); - + perf_evlist__close(evlist); errno = -err; return err; } diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index c096da7d6d58..0583d36252be 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -81,6 +81,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx); int perf_evlist__open(struct perf_evlist *evlist); +void perf_evlist__close(struct perf_evlist *evlist); void perf_evlist__config(struct perf_evlist *evlist, struct perf_record_opts *opts); -- cgit v1.2.3 From 3beb0861438f63bc2025f8afba213dc3d0458bc5 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:50 +0900 Subject: perf trace: Free evlist resources properly on return path The trace_run() function calls several evlist functions but misses some pair-wise cleanup routines on return path. Fix it. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 49fedb51d569..ab3ed4af1466 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -452,7 +452,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv) err = trace__symbols_init(trace, evlist); if (err < 0) { printf("Problems initializing symbol libraries!\n"); - goto out_delete_evlist; + goto out_delete_maps; } perf_evlist__config(evlist, &trace->opts); @@ -465,20 +465,20 @@ static int trace__run(struct trace *trace, int argc, const char **argv) argv, false, false); if (err < 0) { printf("Couldn't run the workload!\n"); - goto out_delete_evlist; + goto out_delete_maps; } } err = perf_evlist__open(evlist); if (err < 0) { printf("Couldn't create the events: %s\n", strerror(errno)); - goto out_delete_evlist; + goto out_delete_maps; } err = perf_evlist__mmap(evlist, UINT_MAX, false); if (err < 0) { printf("Couldn't mmap the events: %s\n", strerror(errno)); - goto out_delete_evlist; + goto out_close_evlist; } perf_evlist__enable(evlist); @@ -534,7 +534,7 @@ again: if (trace->nr_events == before) { if (done) - goto out_delete_evlist; + goto out_unmap_evlist; poll(evlist->pollfd, evlist->nr_fds, -1); } @@ -544,6 +544,12 @@ again: goto again; +out_unmap_evlist: + perf_evlist__munmap(evlist); +out_close_evlist: + perf_evlist__close(evlist); +out_delete_maps: + perf_evlist__delete_maps(evlist); out_delete_evlist: perf_evlist__delete(evlist); out: -- cgit v1.2.3 From 8fa60e1fbaecd2e652abe41f68a934c1759663f3 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:51 +0900 Subject: perf record: Fixup return path of cmd_record() The error path of calling perf_target__parse_uid wrongly went to out_free_fd. Also add missing evlist cleanup routines. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 80cc3ea07788..9f2344a2c506 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1028,7 +1028,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) ui__error("%s", errbuf); err = -saved_errno; - goto out_free_fd; + goto out_symbol_exit; } err = -ENOMEM; @@ -1059,6 +1059,9 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) } err = __cmd_record(&record, argc, argv); + + perf_evlist__munmap(evsel_list); + perf_evlist__close(evsel_list); out_free_fd: perf_evlist__delete_maps(evsel_list); out_symbol_exit: -- cgit v1.2.3 From 9b5b7cdc5139fdcc30ee56d9cd162da60453f6d8 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:52 +0900 Subject: perf tests: Fixup return path of open-syscall-tp-fields test case Add missing evlist cleanup functions. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/open-syscall-tp-fields.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c index 02cb74174e23..fc5b9fca8b47 100644 --- a/tools/perf/tests/open-syscall-tp-fields.c +++ b/tools/perf/tests/open-syscall-tp-fields.c @@ -48,13 +48,13 @@ int test__syscall_open_tp_fields(void) err = perf_evlist__open(evlist); if (err < 0) { pr_debug("perf_evlist__open: %s\n", strerror(errno)); - goto out_delete_evlist; + goto out_delete_maps; } err = perf_evlist__mmap(evlist, UINT_MAX, false); if (err < 0) { pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); - goto out_delete_evlist; + goto out_close_evlist; } perf_evlist__enable(evlist); @@ -110,6 +110,10 @@ out_ok: err = 0; out_munmap: perf_evlist__munmap(evlist); +out_close_evlist: + perf_evlist__close(evlist); +out_delete_maps: + perf_evlist__delete_maps(evlist); out_delete_evlist: perf_evlist__delete(evlist); out: -- cgit v1.2.3 From da522c17035a8415232d850b539ea60063fc7ecc Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:48:53 +0900 Subject: perf tests: Fixup return path of perf record test case Add missing perf_evlist__close() function. Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363326533-3310-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/perf-record.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tools/perf') diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index ffab5a41ff0a..72d8881873b0 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -143,7 +143,7 @@ int test__PERF_RECORD(void) err = perf_evlist__mmap(evlist, opts.mmap_pages, false); if (err < 0) { pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); - goto out_delete_maps; + goto out_close_evlist; } /* @@ -306,6 +306,8 @@ found_exit: } out_err: perf_evlist__munmap(evlist); +out_close_evlist: + perf_evlist__close(evlist); out_delete_maps: perf_evlist__delete_maps(evlist); out_delete_evlist: -- cgit v1.2.3 From d723a55096b81a13c319485f01994e0a539efcf9 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 15 Mar 2013 14:58:11 +0900 Subject: perf test: Add test case for checking number of EXIT events The new test__task_exit() test runs a simple "/usr/bin/true" workload and then checks whether the number of EXIT event is 1 or not. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/87obeljax4.fsf@sejong.aot.lge.com [ committer note: Fixup conflicts with f4c66b4 ( bp overflow tests ) ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 1 + tools/perf/tests/builtin-test.c | 4 ++ tools/perf/tests/task-exit.c | 123 ++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/tests.h | 1 + 4 files changed, 129 insertions(+) create mode 100644 tools/perf/tests/task-exit.c (limited to 'tools/perf') diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 990e9a113190..8e1bba35a1ee 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -513,6 +513,7 @@ LIB_OBJS += $(OUTPUT)tests/hists_link.o LIB_OBJS += $(OUTPUT)tests/python-use.o LIB_OBJS += $(OUTPUT)tests/bp_signal.o LIB_OBJS += $(OUTPUT)tests/bp_signal_overflow.o +LIB_OBJS += $(OUTPUT)tests/task-exit.o BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 45d9ad442d56..9b5c70a180d2 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -85,6 +85,10 @@ static struct test { .desc = "Test breakpoint overflow sampling", .func = test__bp_signal_overflow, }, + { + .desc = "Test number of exit event of a simple workload", + .func = test__task_exit, + }, { .func = NULL, }, diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c new file mode 100644 index 000000000000..28fe5894b061 --- /dev/null +++ b/tools/perf/tests/task-exit.c @@ -0,0 +1,123 @@ +#include "evlist.h" +#include "evsel.h" +#include "thread_map.h" +#include "cpumap.h" +#include "tests.h" + +#include + +static int exited; +static int nr_exit; + +static void sig_handler(int sig) +{ + exited = 1; + + if (sig == SIGUSR1) + nr_exit = -1; +} + +/* + * This test will start a workload that does nothing then it checks + * if the number of exit event reported by the kernel is 1 or not + * in order to check the kernel returns correct number of event. + */ +int test__task_exit(void) +{ + int err = -1; + union perf_event *event; + struct perf_evsel *evsel; + struct perf_evlist *evlist; + struct perf_target target = { + .uid = UINT_MAX, + .uses_mmap = true, + }; + const char *argv[] = { "true", NULL }; + + signal(SIGCHLD, sig_handler); + signal(SIGUSR1, sig_handler); + + evlist = perf_evlist__new(); + if (evlist == NULL) { + pr_debug("perf_evlist__new\n"); + return -1; + } + /* + * We need at least one evsel in the evlist, use the default + * one: "cycles". + */ + err = perf_evlist__add_default(evlist); + if (err < 0) { + pr_debug("Not enough memory to create evsel\n"); + goto out_free_evlist; + } + + /* + * Create maps of threads and cpus to monitor. In this case + * we start with all threads and cpus (-1, -1) but then in + * perf_evlist__prepare_workload we'll fill in the only thread + * we're monitoring, the one forked there. + */ + evlist->cpus = cpu_map__dummy_new(); + evlist->threads = thread_map__new_by_tid(-1); + if (!evlist->cpus || !evlist->threads) { + err = -ENOMEM; + pr_debug("Not enough memory to create thread/cpu maps\n"); + goto out_delete_maps; + } + + err = perf_evlist__prepare_workload(evlist, &target, argv, false, true); + if (err < 0) { + pr_debug("Couldn't run the workload!\n"); + goto out_delete_maps; + } + + evsel = perf_evlist__first(evlist); + evsel->attr.task = 1; + evsel->attr.sample_freq = 0; + evsel->attr.inherit = 0; + evsel->attr.watermark = 0; + evsel->attr.wakeup_events = 1; + evsel->attr.exclude_kernel = 1; + + err = perf_evlist__open(evlist); + if (err < 0) { + pr_debug("Couldn't open the evlist: %s\n", strerror(-err)); + goto out_delete_maps; + } + + if (perf_evlist__mmap(evlist, 128, true) < 0) { + pr_debug("failed to mmap events: %d (%s)\n", errno, + strerror(errno)); + goto out_close_evlist; + } + + perf_evlist__start_workload(evlist); + +retry: + while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) { + if (event->header.type != PERF_RECORD_EXIT) + continue; + + nr_exit++; + } + + if (!exited || !nr_exit) { + poll(evlist->pollfd, evlist->nr_fds, -1); + goto retry; + } + + if (nr_exit != 1) { + pr_debug("received %d EXIT records\n", nr_exit); + err = -1; + } + + perf_evlist__munmap(evlist); +out_close_evlist: + perf_evlist__close(evlist); +out_delete_maps: + perf_evlist__delete_maps(evlist); +out_free_evlist: + perf_evlist__delete(evlist); + return err; +} diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 6cf1ec4866d3..b33b3286ad6e 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -25,5 +25,6 @@ int test__hists_link(void); int test__python_use(void); int test__bp_signal(void); int test__bp_signal_overflow(void); +int test__task_exit(void); #endif /* TESTS_H */ -- cgit v1.2.3 From a7e191c376fad084d9f3c7ac89a1f7c47462ebc8 Mon Sep 17 00:00:00 2001 From: Frederik Deweerdt Date: Fri, 1 Mar 2013 13:02:27 -0500 Subject: perf stat: Introduce --repeat forever The following patch causes 'perf stat --repeat 0' to be interpreted as 'forever', displaying the stats for every run. We act as if a single run was asked, and reset the stats in each iteration. In this mode SIGINT is passed to perf to be able to stop the loop with Ctrl+C. Signed-off-by: Frederik Deweerdt Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20130301180227.GA24385@ks398093.ip-192-95-24.net Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-stat.txt | 2 +- tools/perf/builtin-stat.c | 45 ++++++++++++++++++++++++++++++---- tools/perf/util/evsel.c | 6 +++++ tools/perf/util/evsel.h | 1 + 4 files changed, 48 insertions(+), 6 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index faf4f4feebcc..23e587ad549e 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -52,7 +52,7 @@ OPTIONS -r:: --repeat=:: - repeat command and print average + stddev (max: 100) + repeat command and print average + stddev (max: 100). 0 means forever. -B:: --big-num:: diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 69fe6ed89627..021783ae2bfa 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -94,6 +94,7 @@ static const char *pre_cmd = NULL; static const char *post_cmd = NULL; static bool sync_run = false; static unsigned int interval = 0; +static bool forever = false; static struct timespec ref_time; static struct cpu_map *sock_map; @@ -125,6 +126,11 @@ static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel) return perf_evsel__cpus(evsel)->nr; } +static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel) +{ + memset(evsel->priv, 0, sizeof(struct perf_stat)); +} + static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) { evsel->priv = zalloc(sizeof(struct perf_stat)); @@ -173,6 +179,22 @@ static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS]; static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS]; static struct stats walltime_nsecs_stats; +static void reset_stats(void) +{ + memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats)); + memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats)); + memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats)); + memset(runtime_stalled_cycles_back_stats, 0, sizeof(runtime_stalled_cycles_back_stats)); + memset(runtime_branches_stats, 0, sizeof(runtime_branches_stats)); + memset(runtime_cacherefs_stats, 0, sizeof(runtime_cacherefs_stats)); + memset(runtime_l1_dcache_stats, 0, sizeof(runtime_l1_dcache_stats)); + memset(runtime_l1_icache_stats, 0, sizeof(runtime_l1_icache_stats)); + memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats)); + memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats)); + memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats)); + memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats)); +} + static int create_perf_stat_counter(struct perf_evsel *evsel) { struct perf_event_attr *attr = &evsel->attr; @@ -1252,7 +1274,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), OPT_INTEGER('r', "repeat", &run_count, - "repeat command and print average + stddev (max: 100)"), + "repeat command and print average + stddev (max: 100, forever: 0)"), OPT_BOOLEAN('n', "null", &null_run, "null run - dont start any counters"), OPT_INCR('d', "detailed", &detailed_run, @@ -1355,8 +1377,12 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) if (!argc && !perf_target__has_task(&target)) usage_with_options(stat_usage, options); - if (run_count <= 0) + if (run_count < 0) { usage_with_options(stat_usage, options); + } else if (run_count == 0) { + forever = true; + run_count = 1; + } /* no_aggr, cgroup are for system-wide only */ if ((no_aggr || nr_cgroups) && !perf_target__has_cpu(&target)) { @@ -1413,21 +1439,30 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) * task, but being ignored by perf stat itself: */ atexit(sig_atexit); - signal(SIGINT, skip_signal); + if (!forever) + signal(SIGINT, skip_signal); signal(SIGCHLD, skip_signal); signal(SIGALRM, skip_signal); signal(SIGABRT, skip_signal); status = 0; - for (run_idx = 0; run_idx < run_count; run_idx++) { + for (run_idx = 0; forever || run_idx < run_count; run_idx++) { if (run_count != 1 && verbose) fprintf(output, "[ perf stat: executing run #%d ... ]\n", run_idx + 1); status = run_perf_stat(argc, argv); + if (forever && status != -1) { + print_stat(argc, argv); + list_for_each_entry(pos, &evsel_list->entries, node) { + perf_evsel__reset_stat_priv(pos); + perf_evsel__reset_counts(pos, perf_evsel__nr_cpus(pos)); + } + reset_stats(); + } } - if (status != -1 && !interval) + if (!forever && status != -1 && !interval) print_stat(argc, argv); out_free_fd: list_for_each_entry(pos, &evsel_list->entries, node) { diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 7fde9fb79966..1adb824610f0 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -633,6 +633,12 @@ int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads) return 0; } +void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus) +{ + memset(evsel->counts, 0, (sizeof(*evsel->counts) + + (ncpus * sizeof(struct perf_counts_values)))); +} + int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus) { evsel->counts = zalloc((sizeof(*evsel->counts) + diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index bf758e53c929..3f156ccc1acb 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -121,6 +121,7 @@ int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size); int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads); int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus); +void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus); void perf_evsel__free_fd(struct perf_evsel *evsel); void perf_evsel__free_id(struct perf_evsel *evsel); void perf_evsel__free_counts(struct perf_evsel *evsel); -- cgit v1.2.3 From d134ffb919ab142b2359ae45a0cf4a5bfa1ff283 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 18 Mar 2013 11:24:21 -0300 Subject: perf stat: Introduce evlist methods to allocate/free the stats Reducing the noise in the main logic. Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-o219lnci04hlilxi6711wtcr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 67 ++++++++++++++++++++++++++++++----------------- 1 file changed, 43 insertions(+), 24 deletions(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 021783ae2bfa..ba0bdd87c279 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -166,6 +166,35 @@ static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel) evsel->prev_raw_counts = NULL; } +static void perf_evlist__free_stats(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel; + + list_for_each_entry(evsel, &evlist->entries, node) { + perf_evsel__free_stat_priv(evsel); + perf_evsel__free_counts(evsel); + perf_evsel__free_prev_raw_counts(evsel); + } +} + +static int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw) +{ + struct perf_evsel *evsel; + + list_for_each_entry(evsel, &evlist->entries, node) { + if (perf_evsel__alloc_stat_priv(evsel) < 0 || + perf_evsel__alloc_counts(evsel, perf_evsel__nr_cpus(evsel)) < 0 || + (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel) < 0)) + goto out_free; + } + + return 0; + +out_free: + perf_evlist__free_stats(evlist); + return -1; +} + static struct stats runtime_nsecs_stats[MAX_NR_CPUS]; static struct stats runtime_cycles_stats[MAX_NR_CPUS]; static struct stats runtime_stalled_cycles_front_stats[MAX_NR_CPUS]; @@ -179,8 +208,15 @@ static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS]; static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS]; static struct stats walltime_nsecs_stats; -static void reset_stats(void) +static void perf_stat__reset_stats(struct perf_evlist *evlist) { + struct perf_evsel *evsel; + + list_for_each_entry(evsel, &evlist->entries, node) { + perf_evsel__reset_stat_priv(evsel); + perf_evsel__reset_counts(evsel, perf_evsel__nr_cpus(evsel)); + } + memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats)); memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats)); memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats)); @@ -1308,7 +1344,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) "perf stat [] []", NULL }; - struct perf_evsel *pos; int status = -ENOMEM, run_idx; const char *mode; @@ -1420,17 +1455,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) return -1; } - list_for_each_entry(pos, &evsel_list->entries, node) { - if (perf_evsel__alloc_stat_priv(pos) < 0 || - perf_evsel__alloc_counts(pos, perf_evsel__nr_cpus(pos)) < 0) - goto out_free_fd; - } - if (interval) { - list_for_each_entry(pos, &evsel_list->entries, node) { - if (perf_evsel__alloc_prev_raw_counts(pos) < 0) - goto out_free_fd; - } - } + if (perf_evlist__alloc_stats(evsel_list, interval)) + goto out_free_maps; /* * We dont want to block the signals - that would cause @@ -1454,22 +1480,15 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) status = run_perf_stat(argc, argv); if (forever && status != -1) { print_stat(argc, argv); - list_for_each_entry(pos, &evsel_list->entries, node) { - perf_evsel__reset_stat_priv(pos); - perf_evsel__reset_counts(pos, perf_evsel__nr_cpus(pos)); - } - reset_stats(); + perf_stat__reset_stats(evsel_list); } } if (!forever && status != -1 && !interval) print_stat(argc, argv); -out_free_fd: - list_for_each_entry(pos, &evsel_list->entries, node) { - perf_evsel__free_stat_priv(pos); - perf_evsel__free_counts(pos); - perf_evsel__free_prev_raw_counts(pos); - } + + perf_evlist__free_stats(evsel_list); +out_free_maps: perf_evlist__delete_maps(evsel_list); out: perf_evlist__delete(evsel_list); -- cgit v1.2.3 From bc96b361cbf90e61d2665b1305cd2c4ac1fd9cfc Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 18 Mar 2013 11:41:47 +0900 Subject: perf tests: Add a test case for checking sw clock event frequency This test case checks frequency conversion of hrtimer-based software clock events (cpu-clock, task-clock) have valid (non-1) periods. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1363574507-18808-2-git-send-email-namhyung@kernel.org [ committer note: Moved .sample_freq to outside named init block to cope with some gcc versions ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 1 + tools/perf/tests/builtin-test.c | 4 ++ tools/perf/tests/sw-clock.c | 119 ++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/tests.h | 1 + 4 files changed, 125 insertions(+) create mode 100644 tools/perf/tests/sw-clock.c (limited to 'tools/perf') diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 8e1bba35a1ee..0230b75ed7f9 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -514,6 +514,7 @@ LIB_OBJS += $(OUTPUT)tests/python-use.o LIB_OBJS += $(OUTPUT)tests/bp_signal.o LIB_OBJS += $(OUTPUT)tests/bp_signal_overflow.o LIB_OBJS += $(OUTPUT)tests/task-exit.o +LIB_OBJS += $(OUTPUT)tests/sw-clock.o BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 9b5c70a180d2..0918ada4cc41 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -89,6 +89,10 @@ static struct test { .desc = "Test number of exit event of a simple workload", .func = test__task_exit, }, + { + .desc = "Test software clock events have valid period values", + .func = test__sw_clock_freq, + }, { .func = NULL, }, diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c new file mode 100644 index 000000000000..2e41e2d32ccc --- /dev/null +++ b/tools/perf/tests/sw-clock.c @@ -0,0 +1,119 @@ +#include +#include +#include +#include + +#include "tests.h" +#include "util/evsel.h" +#include "util/evlist.h" +#include "util/cpumap.h" +#include "util/thread_map.h" + +#define NR_LOOPS 1000000 + +/* + * This test will open software clock events (cpu-clock, task-clock) + * then check their frequency -> period conversion has no artifact of + * setting period to 1 forcefully. + */ +static int __test__sw_clock_freq(enum perf_sw_ids clock_id) +{ + int i, err = -1; + volatile int tmp = 0; + u64 total_periods = 0; + int nr_samples = 0; + union perf_event *event; + struct perf_evsel *evsel; + struct perf_evlist *evlist; + struct perf_event_attr attr = { + .type = PERF_TYPE_SOFTWARE, + .config = clock_id, + .sample_type = PERF_SAMPLE_PERIOD, + .exclude_kernel = 1, + .disabled = 1, + .freq = 1, + }; + + attr.sample_freq = 10000; + + evlist = perf_evlist__new(); + if (evlist == NULL) { + pr_debug("perf_evlist__new\n"); + return -1; + } + + evsel = perf_evsel__new(&attr, 0); + if (evsel == NULL) { + pr_debug("perf_evsel__new\n"); + goto out_free_evlist; + } + perf_evlist__add(evlist, evsel); + + evlist->cpus = cpu_map__dummy_new(); + evlist->threads = thread_map__new_by_tid(getpid()); + if (!evlist->cpus || !evlist->threads) { + err = -ENOMEM; + pr_debug("Not enough memory to create thread/cpu maps\n"); + goto out_delete_maps; + } + + perf_evlist__open(evlist); + + err = perf_evlist__mmap(evlist, 128, true); + if (err < 0) { + pr_debug("failed to mmap event: %d (%s)\n", errno, + strerror(errno)); + goto out_close_evlist; + } + + perf_evlist__enable(evlist); + + /* collect samples */ + for (i = 0; i < NR_LOOPS; i++) + tmp++; + + perf_evlist__disable(evlist); + + while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) { + struct perf_sample sample; + + if (event->header.type != PERF_RECORD_SAMPLE) + continue; + + err = perf_evlist__parse_sample(evlist, event, &sample); + if (err < 0) { + pr_debug("Error during parse sample\n"); + goto out_unmap_evlist; + } + + total_periods += sample.period; + nr_samples++; + } + + if ((u64) nr_samples == total_periods) { + pr_debug("All (%d) samples have period value of 1!\n", + nr_samples); + err = -1; + } + +out_unmap_evlist: + perf_evlist__munmap(evlist); +out_close_evlist: + perf_evlist__close(evlist); +out_delete_maps: + perf_evlist__delete_maps(evlist); +out_free_evlist: + perf_evlist__delete(evlist); + return err; +} + +int test__sw_clock_freq(void) +{ + int ret; + + ret = __test__sw_clock_freq(PERF_COUNT_SW_CPU_CLOCK); + if (!ret) + ret = __test__sw_clock_freq(PERF_COUNT_SW_TASK_CLOCK); + + return ret; +} diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index b33b3286ad6e..dd7feae2d37b 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -26,5 +26,6 @@ int test__python_use(void); int test__bp_signal(void); int test__bp_signal_overflow(void); int test__task_exit(void); +int test__sw_clock_freq(void); #endif /* TESTS_H */ -- cgit v1.2.3