linux-kernel - Re: [PATCH] perf: avoid synthesizing mmap() for all processes in per-thread mode perf record

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Message-ID: <20100616205056.GB30679@ghostprotocols.net>
Date:	Wed, 16 Jun 2010 17:50:56 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu,
	paulus@...ba.org, davem@...emloft.net, fweisbec@...il.com,
	perfmon2-devel@...ts.sf.net, eranian@...il.com
Subject: Re: [PATCH] perf: avoid synthesizing mmap() for all processes in
 per-thread mode perf record

Em Wed, Jun 16, 2010 at 08:59:01PM +0200, Stephane Eranian escreveu:
> A bug was introduced by commit c45c6ea2e5c57960dc67e00294c2b78e9540c007.
> 
> Perf record was scanning /proc/PID to create synthetic PERF_RECOR_MMAP
> entries even though it was running in per-thread mode. There was a bogus
> check to select what mmaps to synthesize. We only need all processes in
> system-wide mode.
> 
> Signed-off-by: Stephane Eranian <eranian@...gle.com>

Thanks, appling to perf/urgent

- Arnaldo
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