linux-kernel - Re: [GIT PULL] perf tools fixes

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Date:	Mon, 23 May 2011 13:18:38 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [GIT PULL] perf tools fixes


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Frederic Weisbecker <fweisbec@...il.com> wrote:
> 
> > Ingo,
> > 
> > Please pull the perf/urgent branch that can be found at:
> > 
> > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git
> > 	perf/urgent
> > 
> > Thanks,
> > 	Frederic
> > ---
> > 
> > Frederic Weisbecker (2):
> >       perf tools: Fix sample size bit operations
> >       perf tools: Fix ommitted mmap data update on remap
> > 
> > 
> >  tools/perf/util/event.c   |    2 +-
> >  tools/perf/util/session.c |   39 ++++++++++++++++++++++++++-------------
> >  2 files changed, 27 insertions(+), 14 deletions(-)

Hm, you broke perf top:

   PerfTop:       0 irqs/sec  kernel:-nan%  exact: -nan% [1000Hz cycles],  (all, 16 CPUs)
-------------------------------------------------------------------------------------------------------

             samples  pcnt  DSO
             _______ _____  

Can't parse sample, err = -14
Can't parse sample, err = -14
Can't parse sample, err = -14
Can't parse sample, err = -14
Can't parse sample, err = -14
Can't parse sample, err = -14

and perf record+report as well:

aldebaran:~/linux/linux> perf record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.119 MB perf.data (~5201 samples) ]
aldebaran:~/linux/linux> perf report --stdio
The perf.data file has no samples!

so i'm unpulling these bits.

Thanks,

	Ingo
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