Messages in this thread | | | From | Namhyung Kim <> | Date | Tue, 24 May 2022 10:31:21 -0700 | Subject | Re: [PATCH 2/2] perf lock: Add -t/--thread option for report |
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Hi Arnaldo,
On Mon, May 23, 2022 at 5:50 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote: > Applied both and added this: > > ⬢[acme@toolbox perf]$ git diff > diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt > index b43222229807672c..656b537b2fba078f 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 > ------------
Thanks a lot for doing this! Namhyung
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