linux-kernel - Re: [PATCH 11/19] perf record: Release resources at exit

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Message-ID: <20100802073009.GB7841@amd>
Date:	Mon, 2 Aug 2010 17:30:09 +1000
From:	Nick Piggin <npiggin@...e.de>
To:	Arnaldo Carvalho de Melo <acme@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 11/19] perf record: Release resources at exit

On Sun, Aug 01, 2010 at 10:08:46PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@...hat.com>
> 
> So that we can reduce the noise on valgrind when looking for memory
> leaks.

Really? That's rather crappy of valgrind. exit is well defined to
release resources and that's often a more efficient way to do it
It finds and batches things a lot better, eg. it can avoid all
TLB flushing of freeing memory that munmap requires.

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