linux-kernel - Re: [PATCH v4] perf bench sched pipe: Add -G/--cgroups option

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Date:   Thu, 26 Oct 2023 10:11:13 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Namhyung Kim <namhyung@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v4] perf bench sched pipe: Add -G/--cgroups option

On Tue, 17 Oct 2023 13:23:42 -0700, Namhyung Kim wrote:
> The -G/--cgroups option is to put sender and receiver in different
> cgroups in order to measure cgroup context switch overheads.
> 
> Users need to make sure the cgroups exist and accessible.  The following
> example should the effect of this change.  Please don't forget taskset
> before the perf bench to measure cgroup switches properly.  Otherwise
> each task would run on a different CPU and generate cgroup switches
> regardless of this change.
> 
> [...]

Applied to perf-tools-next, thanks!