diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2022-05-20 18:08:11 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-05-23 09:49:35 -0300 |
| commit | 7c3bcbdf449fe591c9b68521b45869669ec76010 (patch) | |
| tree | 646dbd49da8ac242ce9a9af051508591cc94673a /tools/perf/Documentation | |
| parent | 79d9333b85910a73e39233d6190e60f903d120b6 (diff) | |
perf lock: Add -t/--thread option for report
The -t option is to show per-thread lock stat like below:
$ perf lock report -t -F acquired,contended,avg_wait
Name acquired contended avg wait (ns)
perf 240569 9 5784
swapper 106610 19 543
:15789 17370 2 14538
ContainerMgr 8981 6 874
sleep 5275 1 11281
ContainerThread 4416 4 944
RootPressureThr 3215 5 1215
rcu_preempt 2954 0 0
ContainerMgr 2560 0 0
unnamed 1873 0 0
EventManager_De 1845 1 636
futex-default-S 1609 0 0
...
Committer notes:
Add that option to the 'perf lock report' man page.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220521010811.932703-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-lock.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt index b43222229807..656b537b2fba 100644 --- a/tools/perf/Documentation/perf-lock.txt +++ b/tools/perf/Documentation/perf-lock.txt @@ -64,6 +64,27 @@ REPORT OPTIONS --combine-locks:: Merge lock instances in the same class (based on name). +-t:: +--threads:: + The -t option is to show per-thread lock stat like below: + + $ perf lock report -t -F acquired,contended,avg_wait + + Name acquired contended avg wait (ns) + + perf 240569 9 5784 + swapper 106610 19 543 + :15789 17370 2 14538 + ContainerMgr 8981 6 874 + sleep 5275 1 11281 + ContainerThread 4416 4 944 + RootPressureThr 3215 5 1215 + rcu_preempt 2954 0 0 + ContainerMgr 2560 0 0 + unnamed 1873 0 0 + EventManager_De 1845 1 636 + futex-default-S 1609 0 0 + INFO OPTIONS ------------ |