linux-kernel - Re: [PATCH 1/2] perf report: Add --header/--header-only options

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Message-ID: <87ppp5lg2t.fsf@sejong.aot.lge.com>
Date:	Tue, 10 Dec 2013 09:12:10 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 1/2] perf report: Add --header/--header-only options

On Mon,  9 Dec 2013 11:02:49 +0100, 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, forces stdio output
>
[SNIP]
> +--header
> +	Show perf.data header.

This explanation looks too terse.  How about this?

	Show header information in the perf.data file.  This includes
        various information like hostname, os and perf version, cpu/mem
        info, perf command line, event list and so on.  Currently only
        --stdio output supports this feature.

Thanks,
Namhyung

> +
> +--header-only
> +	Show only perf.data header (forces --stdio).
> +
>  SEE ALSO
>  --------
>  linkperf:perf-stat[1], linkperf:perf-annotate[1]
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