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Date: Mon, 09 Dec 2013 16:25:29 -0700
From: David Ahern <dsahern@gmail.com>
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To: Jiri Olsa <jolsa@redhat.com>, linux-kernel@vger.kernel.org
CC: Corey Ashford <cjashfor@linux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Ingo Molnar <mingo@elte.hu>,
        Namhyung Kim <namhyung@kernel.org>, Paul Mackerras <paulus@samba.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 0/2] perf tools: Add --header/--header-only options
References: <1386583370-1699-1-git-send-email-jolsa@redhat.com>
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[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@linux.vnet.ibm.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> Cc: David Ahern <dsahern@gmail.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@gmail.com>