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authorBrice Goglin <Brice.Goglin@inria.fr>2009-08-07 13:55:24 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-09 13:04:20 +0200
commit8d51327090ac025d7f4ce6c059786b5e93513321 (patch)
tree32576a197af970ac698c7888c67235e8f723fa67 /tools/perf/Documentation
parent30dd568c912602b7dbd609a45d053e01b13422bb (diff)
perf report: Fix and improve the displaying of per-thread event counters
Improve and fix the handling of per-thread counter stats recorded via perf record -s. Previously we only displayed it in debug printouts (-D) and even that output was hard to disambiguate. I moved everything to utils/values.[ch] so that we may reuse it in perf stat. We get something like this now: # PID TID cache-misses cache-references 4658 4659 495581 3238779 4658 4662 498246 3236823 4658 4663 499531 3243162 Then it'll be easy to add --pretty=raw to display a single line per thread/event. By the way, -S was also used for --symbol... So I used -T/--thread here. perf report: Add -T/--threads to display per-thread counter values We get something like this now: # PID TID cache-misses cache-references 4658 4659 495581 3238779 4658 4662 498246 3236823 4658 4663 499531 3243162 Per-thread arrays of counter values are managed in utils/values.[ch] Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: paulus@samba.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-report.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index e72e93110782..370344afb5b2 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -27,6 +27,9 @@ OPTIONS
-n
--show-nr-samples
Show the number of samples for each symbol
+-T
+--threads
+ Show per-thread event counters
-C::
--comms=::
Only consider symbols in these comms. CSV that understands