linux-kernel - Re: [RFC PATCH v4 15/15] perf stat: Add hardware-grouping cmd option to perf stat

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Date: Sat, 23 Mar 2024 22:56:57 -0700
From: Ian Rogers <irogers@...gle.com>
To: weilin.wang@...el.com
Cc: Kan Liang <kan.liang@...ux.intel.com>, Namhyung Kim <namhyung@...nel.org>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Adrian Hunter <adrian.hunter@...el.com>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Perry Taylor <perry.taylor@...el.com>, 
	Samantha Alt <samantha.alt@...el.com>, Caleb Biggers <caleb.biggers@...el.com>, 
	Mark Rutland <mark.rutland@....com>
Subject: Re: [RFC PATCH v4 15/15] perf stat: Add hardware-grouping cmd option
 to perf stat

On Thu, Feb 8, 2024 at 7:14 PM <weilin.wang@...el.com> wrote:
>
> From: Weilin Wang <weilin.wang@...el.com>
>
> Add a cmd option to allow user to choose this new metric grouping method.
>
> $ perf stat -M TopdownL1 -a --hardware-grouping
>
> Signed-off-by: Weilin Wang <weilin.wang@...el.com>

Reviewed-by: Ian Rogers <irogers@...gle.com>

Thanks,
Ian

> ---
>  tools/perf/builtin-stat.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> index d08a40c4bae1..e30f7a856122 100644
> --- a/tools/perf/builtin-stat.c
> +++ b/tools/perf/builtin-stat.c
> @@ -1257,6 +1257,8 @@ static struct option stat_options[] = {
>                        "don't try to share events between metrics in a group"),
>         OPT_BOOLEAN(0, "metric-no-threshold", &stat_config.metric_no_threshold,
>                        "disable adding events for the metric threshold calculation"),
> +       OPT_BOOLEAN(0, "hardware-grouping", &stat_config.hardware_aware_grouping,
> +                               "Use hardware aware metric grouping method"),
>         OPT_BOOLEAN(0, "topdown", &topdown_run,
>                         "measure top-down statistics"),
>         OPT_UINTEGER(0, "td-level", &stat_config.topdown_level,
> --
> 2.42.0
>