linux-kernel - Re: [PATCH v1] perf metrics: Remove the "No

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Message-ID: <8e60ccd6-907e-445c-85e0-785b1426e98c@linux.intel.com>
Date: Fri, 5 Apr 2024 10:45:59 -0400
From: "Liang, Kan" <kan.liang@...ux.intel.com>
To: Ian Rogers <irogers@...gle.com>, Peter Zijlstra <peterz@...radead.org>,
 Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>,
 Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....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,
 Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH v1] perf metrics: Remove the "No_group" metric group



On 2024-04-03 12:46 p.m., Ian Rogers wrote:
> Rather than place metrics without a metric group in "No_group" place
> them in a a metric group that is their name. Still allow such metrics
> to be selected if "No_group" is passed, this change just impacts perf
> list.
> 
> Signed-off-by: Ian Rogers <irogers@...gle.com>

Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>

Thanks,
Kan

> ---
>  tools/perf/util/metricgroup.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index 79ef6095ab28..6ec083af14a1 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -455,7 +455,7 @@ static int metricgroup__add_to_mep_groups(const struct pmu_metric *pm,
>  	const char *g;
>  	char *omg, *mg;
>  
> -	mg = strdup(pm->metric_group ?: "No_group");
> +	mg = strdup(pm->metric_group ?: pm->metric_name);
>  	if (!mg)
>  		return -ENOMEM;
>  	omg = mg;
> @@ -466,7 +466,7 @@ static int metricgroup__add_to_mep_groups(const struct pmu_metric *pm,
>  		if (strlen(g))
>  			me = mep_lookup(groups, g, pm->metric_name);
>  		else
> -			me = mep_lookup(groups, "No_group", pm->metric_name);
> +			me = mep_lookup(groups, pm->metric_name, pm->metric_name);
>  
>  		if (me) {
>  			me->metric_desc = pm->desc;