From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763528AbZE0Nrr (ORCPT ); Wed, 27 May 2009 09:47:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761764AbZE0Nrj (ORCPT ); Wed, 27 May 2009 09:47:39 -0400 Received: from www.tglx.de ([62.245.132.106]:38468 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762816AbZE0Nrj (ORCPT ); Wed, 27 May 2009 09:47:39 -0400 Date: Wed, 27 May 2009 15:46:45 +0200 (CEST) From: Thomas Gleixner To: Frederic Weisbecker cc: Anton Blanchard , rostedt@goodmis.org, mingo@elte.hu, tzanussi@gmail.com, jbaron@redhat.com, kosaki.motohiro@jp.fujitsu.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] tracing/events: Add timer and high res timer tracepoints In-Reply-To: <20090526180600.GA5969@nowhere> Message-ID: References: <20090520101334.GA23442@kryten> <20090526042643.GB19728@kryten> <20090526180600.GA5969@nowhere> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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