diff options
| author | Stanislav Fomichev <stfomichev@yandex-team.ru> | 2013-11-01 20:25:51 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-11-27 14:58:37 -0300 |
| commit | 6f8d67fa0c6bdca535ecab137c44b095023cc1b4 (patch) | |
| tree | 4c624985d3666affdb2800eb0ca59384fbd9be6d /tools/perf/Documentation | |
| parent | 367b3152d72c20d789b07650bd1189ce0fe266b8 (diff) | |
perf timechart: Add backtrace support
Add -g flag to `perf timechart record` which saves callchain info in the
perf.data.
When generating SVG, add backtrace information to the figure details, so
now it's possible to see which code path woke up the task and why some
task went to sleep.
Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383323151-19810-8-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-timechart.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index 8359cfadf0ac..271dd4ed5b05 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -68,6 +68,9 @@ RECORD OPTIONS -T:: --tasks-only:: Record only tasks-related events +-g:: +--callchain:: + Do call-graph (stack chain/backtrace) recording SEE ALSO -------- |