Re: [PATCH v11 08/24] perf config: Document 'hist.percentage' variable in man page
From: Namhyung Kim
Date: Tue Nov 17 2015 - 19:50:44 EST
On Tue, Nov 17, 2015 at 10:53:28PM +0900, Taeung Song wrote:
> Explain 'hist.percentage' variable.
>
> Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
> Signed-off-by: Taeung Song <treeze.taeung@xxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
One nitpick below..
> ---
> tools/perf/Documentation/perf-config.txt | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
> index 88e9b88..b166b81 100644
> --- a/tools/perf/Documentation/perf-config.txt
> +++ b/tools/perf/Documentation/perf-config.txt
> @@ -263,6 +263,23 @@ help.*::
> <perf sub-command> can be record, script, report or inject
> or: perf-with-kcore fix_buildid_cache_permissions
>
> +hist.*::
> + hist.percentage::
> + This option control a way to calcurate overhead of filtered entries -
s/control a way/controls the way/, s/calcurate/calculate/
Thanks,
Namhyung
> + that means the value of this option is effective only if there's a
> + filter (by comm, dso or symbol name). Suppose a following example:
> +
> + Overhead Symbols
> + ........ .......
> + 33.33% foo
> + 33.33% bar
> + 33.33% baz
> +
> + This is an original overhead and we'll filter out the first 'foo'
> + entry. The value of 'relative' would increase the overhead of 'bar'
> + and 'baz' to 50.00% for each, while 'absolute' would show their
> + current overhead (33.33%).
> +
> SEE ALSO
> --------
> linkperf:perf[1]
> --
> 1.9.1
>
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