linux-kernel - Re: [PATCH 1/2] perf stat: add -l <N> option to redirect stderr elsewhere

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Message-ID: <20110521103418.GB23651@elte.hu>
Date:	Sat, 21 May 2011 12:34:18 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jim Cromie <jim.cromie@...il.com>
Cc:	linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
	paulus@...ba.org, acme@...stprotocols.net
Subject: Re: [PATCH 1/2] perf stat: add -l <N> option to redirect stderr
 elsewhere


* Jim Cromie <jim.cromie@...il.com> wrote:

> This perf stat option emulates valgrind's --log-fd option, allowing the
> user to send perf results elsewhere, and leaving stderr for use by the
> program under test.
> 
>   3>results perf stat -l 3 -- <cmd>
> 
> The perl distro's make test.valgrind target uses valgrinds --log-fd
> option, I've adapted it to invoke perf also, and tested this patch there.
> 
> Signed-off-by: Jim Cromie <jim.cromie@...il.com>

Makes sense!

Arnaldo, if you are fine with it, do you want to pick it up - or should i? If 
you pick it up:

Acked-by: Ingo Molnar <mingo@...e.hu>

Thanks,

	Ingo
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