linux-kernel - Re: [PATCH v2 1/2] perf test workload noploop: Name the noploop process

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Message-ID: <069ef044-7e06-466f-a10f-66f7c8aacac1@linaro.org>
Date: Fri, 20 Jun 2025 11:01:49 +0100
From: James Clark <james.clark@...aro.org>
To: Ian Rogers <irogers@...gle.com>
Cc: 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>,
 Kan Liang <kan.liang@...ux.intel.com>, linux-kernel@...r.kernel.org,
 linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v2 1/2] perf test workload noploop: Name the noploop
 process



On 19/06/2025 1:20 am, Ian Rogers wrote:
> Name the noploop process "perf-noploop" so that tests can easily check
> for its existence.
> 
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>   tools/perf/tests/workloads/noploop.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/tools/perf/tests/workloads/noploop.c b/tools/perf/tests/workloads/noploop.c
> index 940ea5910a84..8b954d466083 100644
> --- a/tools/perf/tests/workloads/noploop.c
> +++ b/tools/perf/tests/workloads/noploop.c
> @@ -2,6 +2,8 @@
>   #include <stdlib.h>
>   #include <signal.h>
>   #include <unistd.h>
> +#include <linux/prctl.h>
> +#include <sys/prctl.h>
>   #include <linux/compiler.h>
>   #include "../tests.h"
>   
> @@ -16,6 +18,7 @@ static int noploop(int argc, const char **argv)
>   {
>   	int sec = 1;
>   
> +	prctl(PR_SET_NAME, "perf-noploop");
>   	if (argc > 0)
>   		sec = atoi(argv[0]);
>   

Reviewed-by: James Clark <james.clark@...aro.org>