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Date:   Fri, 23 Oct 2020 10:04:22 -0700
From:   Andi Kleen <ak@linux.intel.com>
To:     Namhyung Kim <namhyung@kernel.org>
Cc:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jiri Olsa <jolsa@redhat.com>, Ingo Molnar <mingo@kernel.org>,
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        LKML <linux-kernel@vger.kernel.org>,
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        Ian Rogers <irogers@google.com>
Subject: Re: [PATCH] perf stat: Support regex pattern in --for-each-cgroup
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On Fri, Oct 23, 2020 at 04:42:34PM +0900, Namhyung Kim wrote:
> To make the command line even more compact with cgroups, support regex
> pattern matching in cgroup names.
> 
>   $ perf stat -a -e cpu-clock,cycles --for-each-cgroup '^.$' sleep 1

The example doesn't exactly show the benefit. So ^.$ would be only
for one character cgroups?

Missing documentation updates.

-Andi