linux-kernel - Re: [PATCH v3] perf bench sched pipe: Add -G/--cgroups option

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Message-ID: <ZS1c9RCh9MkzPbFG@kernel.org>
Date:   Mon, 16 Oct 2023 12:55:33 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v3] perf bench sched pipe: Add -G/--cgroups option

Em Mon, Oct 16, 2023 at 12:51:52PM -0300, Arnaldo Carvalho de Melo escreveu:
> Now back at testing with with cgroups.


Humm, even without the -G I get:

[root@...e ~]# perf stat -e context-switches,cgroup-switches perf bench sched pipe  -l 10000
# Running 'sched/pipe' benchmark:
# Executed 10000 pipe operations between two processes

     Total time: 0.082 [sec]

       8.246400 usecs/op
         121265 ops/sec

 Performance counter stats for 'perf bench sched pipe -l 10000':

            20,002      context-switches
            20,002      cgroup-switches

       0.091228041 seconds time elapsed

       0.007122000 seconds user
       0.087700000 seconds sys


[root@...e ~]#

- Arnaldo