linux-kernel - Re: [PATCH 1/3] perf lock: Add --synth=no option for record

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Date:   Fri, 25 Mar 2022 15:26:32 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCH 1/3] perf lock: Add --synth=no option for record

Em Wed, Mar 23, 2022 at 04:02:57PM -0700, Namhyung Kim escreveu:
> The perf lock command has nothing to symbolize and lock names come
> from the tracepoint.  Moreover, kernel symbols are available even the
> --synth=no option is given.
> 
> This will reduce the startup time by avoiding unnecessary synthesis.

Thanks, applied the series.

- Arnaldo

 
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/builtin-lock.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
> index 57b9ebd7118a..1ebff88bc5ba 100644
> --- a/tools/perf/builtin-lock.c
> +++ b/tools/perf/builtin-lock.c
> @@ -990,7 +990,7 @@ static int __cmd_report(bool display_info)
>  static int __cmd_record(int argc, const char **argv)
>  {
>  	const char *record_args[] = {
> -		"record", "-R", "-m", "1024", "-c", "1",
> +		"record", "-R", "-m", "1024", "-c", "1", "--synth", "no",
>  	};
>  	unsigned int rec_argc, i, j, ret;
>  	const char **rec_argv;
> -- 
> 2.35.1.894.gb6a874cedc-goog

-- 

- Arnaldo