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

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Message-ID: <1295901443.2156.6.camel@offworld>
Date:	Mon, 24 Jan 2011 17:37:23 -0300
From:	Davidlohr Bueso <dave@....org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] perf fixes

On Tue, 2011-01-25 at 06:17 +1000, Linus Torvalds wrote:
> On Tue, Jan 25, 2011 at 6:07 AM, Ingo Molnar <mingo@...e.hu> wrote:
> >>
> >>     perf report -agf sleep 10
> >
> > (that's perf record i guess?)
> 
> Eh. Yes,
> 
> >> Is it just me?
> >
> > We used to have such bugs recently so i'm quite sure what you see is real.
> >
> > The above test is almost the same what i did before sending you the pull request, so
> > it's not occuring all the time and on all boxes.
> 
> It only happens for me with "g". With "perf record -af sleep 10" it worked.
> 
> > The distro version on that box you are using would be helpful, plus the build output
> > you get when you build 'tools/perf'. (I.e. which libraries are there. If it comes up
> > empty with no complaints you have all the devel libraries.)
> 
> It's up-to-date Fedora 14 on x86-32.
> 
> And there's no build output at all, except for the trivial:
> 
>   [torvalds@...pc perf]$ make
>   PERF_VERSION = 2.6.38.rc2.62.gec30f3.dirty
>       GEN common-cmds.h
>       * new build flags or prefix
>       CC perf.o
>       CC builtin-annotate.o
>       CC builtin-bench.o
>       ...
> 

For what it's worth I cant reproduce this either, at least on x86_64
using 2.6.38.rc2.37.g9320a7.

> so I have everything installed.
> 
>                     Linus
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