Re: [PATCH -tip v3 3/6] perf branch trace: print pid and command

From: Arnaldo Carvalho de Melo
Date: Wed Apr 06 2011 - 10:10:17 EST


Em Wed, Apr 06, 2011 at 02:15:07PM +0200, Frederic Weisbecker escreveu:
> On Fri, Apr 01, 2011 at 11:11:10AM -0600, David Ahern wrote:
> > On 04/01/11 09:13, Frederic Weisbecker wrote:
> > > But well, we can start simple and make and just do the => trick
> > > if we have PERF_SAMPLE_ADDR and resolve addr if the user asked
> > > the sym. Then when we have the graph output, have these per evsel
> > > display callbacks.

> > There is another email thread about page faults. The user wants sample
> > address resolved to symbols. I was going to look into it next week when
> > I get back from vacation.

> What we seem to need for that is to bring a pagefault tracepoint. We had
> propositions for that in the past, but work on this is in pause mode it
> seems.

Isn't there one in the 'tip/tmp.perf/trace' tmp branch? Lemme see...

Yeah, and it is even yours ;-)

commit 6a824e89c0dfe6bce3d7e85f987ec9c8e7304b34
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Date: Fri Nov 12 05:35:06 2010 +0100

perf, mm: Add fault tracing

Part of that are two modified patches from Jiri Olsa who added the
fault tracepoints. I had to split them in two tracepoints so that we get
the faults handling duration.

Originally-from: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Can we dust this one off and get the ball rolling again?

- Arnaldo
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