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From: Namhyung Kim <namhyung@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org, Corey Ashford <cjashfor@linux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Ingo Molnar <mingo@elte.hu>,
        Paul Mackerras <paulus@samba.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 1/2] perf report: Add --header/--header-only options
References: <1386583370-1699-1-git-send-email-jolsa@redhat.com>
	<1386583370-1699-2-git-send-email-jolsa@redhat.com>
Date: Tue, 10 Dec 2013 09:12:10 +0900
In-Reply-To: <1386583370-1699-2-git-send-email-jolsa@redhat.com> (Jiri Olsa's
	message of "Mon, 9 Dec 2013 11:02:49 +0100")
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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]