linux-kernel - Re: [PATCH] perf: Enable function tracing for perf core

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Message-ID: <20130410125603.GB12978@gmail.com>
Date:	Wed, 10 Apr 2013 14:56:03 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Andi Kleen <andi@...stfloor.org>, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH] perf: Enable function tracing for perf core


* Steven Rostedt <rostedt@...dmis.org> wrote:

> On Thu, 2013-03-28 at 08:45 -0700, Andi Kleen wrote:
> > Andi Kleen <andi@...stfloor.org> writes:
> > 
> > > From: Andi Kleen <ak@...ux.intel.com>
> > >
> > > According to Steven R. there is no reason left to not support
> > > function tracing for the perf core. This makes it easier to debug
> > > perf.
> > >
> > > Don't remove -pg for the x86 and generic perf core.
> > 
> > Ping! patch is missing review.
> > 
> 
> This needs an acked-by from either Peter or Frederic.

I think this was mentioned before: there was measurable overhead due to this, so 
that has to be re-measured.

Thanks,

	Ingo
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