linux-kernel - Re: [PATCH] perf annotate: Numeric assembly labels cause incorrect annotation

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Message-ID: <1328782223.9303.3.camel@marge.simpson.net>
Date:	Thu, 09 Feb 2012 11:10:23 +0100
From:	Mike Galbraith <efault@....de>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Anton Blanchard <anton@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>, emunson@...bm.net,
	imunsie@....ibm.com, eranian@...gle.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf annotate: Numeric assembly labels cause incorrect
 annotation

On Tue, 2012-02-07 at 12:40 -0200, Arnaldo Carvalho de Melo wrote: 
> Em Tue, Feb 07, 2012 at 02:55:35PM +1100, Anton Blanchard escreveu:
> > 
> > A perf annotate of a kernel function written in assembly shows
> > very strange percentages:
> 
> Thanks! I think this is the same problem Mike Galbraith noticed and
> reported me (I guess that was in a private message), Mike, can you
> please test it so that I can add more Foo-by stamps to this one?

Sorry for the slow response (bz bz).

I don't see that problem, but perf top annotation isn't working properly
in tip at least.  It seems to have forgotten how to average, seems to be
clearing hit counts at every screen refresh or something.

-Mike

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