linux-kernel - Re: [PATCH RESEND] perf record: Fix documentation for a disused option '-l'

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Message-ID: <20171017120652.GB4204@kernel.org>
Date:   Tue, 17 Oct 2017 09:06:52 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Taeung Song <treeze.taeung@...il.com>
Cc:     linux-kernel@...r.kernel.org, taeung@...slab.kr,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH RESEND] perf record: Fix documentation for a disused
 option '-l'

Em Sat, Oct 14, 2017 at 12:10:12AM +0900, Taeung Song escreveu:
> perf-record had a '-l' option that mean "scale counter values"
> very long time ago, but it currently belong to perf-stat as '-c'.
> So remove it. I found this problem in the below case.

Applied,

- Arnaldo
 
>     $ perf record -e cycles -l sleep 3
>       Error: unknown switch `l
> 
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Signed-off-by: Taeung Song <treeze.taeung@...il.com>
> ---
>  tools/perf/Documentation/perf-record.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
> index 68a1ffb..5a626ef 100644
> --- a/tools/perf/Documentation/perf-record.txt
> +++ b/tools/perf/Documentation/perf-record.txt
> @@ -8,8 +8,8 @@ perf-record - Run a command and record its profile into perf.data
>  SYNOPSIS
>  --------
>  [verse]
> -'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
> -'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] -- <command> [<options>]
> +'perf record' [-e <EVENT> | --event=EVENT] [-a] <command>
> +'perf record' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
>  
>  DESCRIPTION
>  -----------
> -- 
> 2.7.4