linux-kernel - Re: [PATCH 0/2] perf tools: Add --header/--header-only options

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Message-ID: <52A65169.2030705@gmail.com>
Date:	Mon, 09 Dec 2013 16:25:29 -0700
From:	David Ahern <dsahern@...il.com>
To:	Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
CC:	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 0/2] perf tools: Add --header/--header-only options

[Added Stephane given that he added the header output]

On 12/9/13, 3:02 AM, Jiri Olsa wrote:
> Currently the perf.data header is always displayed for stdio
> output, which is no always useful.
>
> Disabling header information by default and adding following
> options to control header output:
>    --header      - display header information (old default)
>    --header-only - display header information only w/o further
>                    processing.
>
> thanks,
> jirka
>
>
> Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
> Cc: David Ahern <dsahern@...il.com>
> ---
>   tools/perf/Documentation/perf-report.txt |  6 ++++++
>   tools/perf/Documentation/perf-script.txt |  6 ++++++
>   tools/perf/builtin-report.c              | 19 ++++++++++++++++---
>   tools/perf/builtin-script.c              | 13 ++++++++++---
>   4 files changed, 38 insertions(+), 6 deletions(-)
>

I've been getting annoyed but that as well. Very useful on the first 
run; overhead after that.

Acked-by: David Ahern <dsahern@...il.com>

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