linux-kernel - Re: [PATCH] tracing/events: Add timer and high res timer tracepoints

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Date:	Wed, 27 May 2009 15:46:45 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Frederic Weisbecker <fweisbec@...il.com>
cc:	Anton Blanchard <anton@...ba.org>, rostedt@...dmis.org,
	mingo@...e.hu, tzanussi@...il.com, jbaron@...hat.com,
	kosaki.motohiro@...fujitsu.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tracing/events: Add timer and high res timer
 tracepoints

On Tue, 26 May 2009, Frederic Weisbecker wrote:

> On Tue, May 26, 2009 at 02:26:43PM +1000, Anton Blanchard wrote:
> > 
> > Add tracepoints for timer and high res timer execution. We add entry and
> > exit tracepoints so we can calculate timer latency.
> 
> 
> Your work looks very similar to Xiao Guangrong's patches.
> 
> See:
> 
> ftrace: add tracepoint for timer
> ftrace: add tracepoint for itimer
> ftrace: add tracepoint for hrimer
> 
> I'm not sure which one should be picked between
> his patches and yours.

Actually we want a combination of both.

Thanks,
	 tglx
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