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| author | Brice Goglin <Brice.Goglin@inria.fr> | 2009-08-07 13:55:24 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-09 13:04:20 +0200 |
| commit | 8d51327090ac025d7f4ce6c059786b5e93513321 (patch) | |
| tree | 32576a197af970ac698c7888c67235e8f723fa67 /tools/perf/Documentation | |
| parent | 30dd568c912602b7dbd609a45d053e01b13422bb (diff) | |
| download | linux-8d51327090ac025d7f4ce6c059786b5e93513321.tar.gz linux-8d51327090ac025d7f4ce6c059786b5e93513321.tar.bz2 linux-8d51327090ac025d7f4ce6c059786b5e93513321.zip | |
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.txt | 3 |
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 |