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authorSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>2016-09-15 15:24:48 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-10-03 21:35:47 -0300
commitc8d6828a6510c9363180ebf662b51d032e0eb85a (patch)
treeb2f63f0bb7f47ff99d82b7e7e162933ac1a86d9b /tools/perf/builtin-list.c
parent794ba54a8393456d503958d6217874e455b6a771 (diff)
perf list: Support long jevents descriptions
Previously we were dropping the useful longer descriptions that some events have in the event list completely. This patch makes them appear with perf list. Old perf list: baclears: baclears.all [Counts the number of baclears] vs new: perf list -v: ... baclears: baclears.all [The BACLEARS event counts the number of times the front end is resteered, mainly when the Branch Prediction Unit cannot provide a correct prediction and this is corrected by the Branch Address Calculator at the front end. The BACLEARS.ANY event counts the number of baclears for any type of branch] Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1473978296-20712-13-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-list.c')
-rw-r--r--tools/perf/builtin-list.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index b14cb162f841..ba9322ff858b 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -22,14 +22,17 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
{
int i;
bool raw_dump = false;
+ bool long_desc_flag = false;
struct option list_options[] = {
OPT_BOOLEAN(0, "raw-dump", &raw_dump, "Dump raw events"),
OPT_BOOLEAN('d', "desc", &desc_flag,
"Print extra event descriptions. --no-desc to not print."),
+ OPT_BOOLEAN('v', "long-desc", &long_desc_flag,
+ "Print longer event descriptions."),
OPT_END()
};
const char * const list_usage[] = {
- "perf list [--no-desc] [hw|sw|cache|tracepoint|pmu|sdt|event_glob]",
+ "perf list [<options>] [hw|sw|cache|tracepoint|pmu|sdt|event_glob]",
NULL
};
@@ -44,7 +47,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
printf("\nList of pre-defined events (to be used in -e):\n\n");
if (argc == 0) {
- print_events(NULL, raw_dump, !desc_flag);
+ print_events(NULL, raw_dump, !desc_flag, long_desc_flag);
return 0;
}
@@ -65,14 +68,16 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, raw_dump);
else if (strcmp(argv[i], "pmu") == 0)
- print_pmu_events(NULL, raw_dump, !desc_flag);
+ print_pmu_events(NULL, raw_dump, !desc_flag,
+ long_desc_flag);
else if (strcmp(argv[i], "sdt") == 0)
print_sdt_events(NULL, NULL, raw_dump);
else if ((sep = strchr(argv[i], ':')) != NULL) {
int sep_idx;
if (sep == NULL) {
- print_events(argv[i], raw_dump, !desc_flag);
+ print_events(argv[i], raw_dump, !desc_flag,
+ long_desc_flag);
continue;
}
sep_idx = sep - argv[i];
@@ -94,7 +99,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
print_symbol_events(s, PERF_TYPE_SOFTWARE,
event_symbols_sw, PERF_COUNT_SW_MAX, raw_dump);
print_hwcache_events(s, raw_dump);
- print_pmu_events(s, raw_dump, !desc_flag);
+ print_pmu_events(s, raw_dump, !desc_flag,
+ long_desc_flag);
print_tracepoint_events(NULL, s, raw_dump);
print_sdt_events(NULL, s, raw_dump);
free(s);