Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755750Ab1DFRSc (ORCPT ); Wed, 6 Apr 2011 13:18:32 -0400 Received: from mail-gy0-f174.google.com ([209.85.160.174]:38436 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755136Ab1DFRSa (ORCPT ); Wed, 6 Apr 2011 13:18:30 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:x-url:user-agent; b=NEjfPNylp5RH0qsaTre1gQpZgQ4tGmEpWK8IvJ09FDId25eJSqUy0A/6Tfp9X0CuNH GhzAcfCYxMK9ZgUWUKkncFBbVhmCY6t1wmpXk4sQmwbXt8Lm9NTwJE5+pKCMEenGzc3b lj9hdtKt+OvSXI0tj81Q1dggA9K+zijnhGjVI= Date: Wed, 6 Apr 2011 14:18:21 -0300 From: Arnaldo Carvalho de Melo To: Frederic Weisbecker Cc: David Ahern , Akihiro Nagai , Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org, Masami Hiramatsu , 2nddept-manager@sdl.hitachi.co.jp, Paul Mackerras , Jiri Olsa Subject: Re: [PATCH -tip v3 3/6] perf branch trace: print pid and command Message-ID: <20110406171821.GB4987@ghostprotocols.net> References: <4D8B79E6.2050603@gmail.com> <4D8C6B1B.70409@hitachi.com> <4D8CAE74.9080805@gmail.com> <4D906450.1040809@hitachi.com> <4D909BBB.5020500@gmail.com> <20110401151313.GC2335@nowhere> <4D96072E.4060902@gmail.com> <20110406121501.GA1867@nowhere> <20110406140958.GA4987@ghostprotocols.net> <20110406145521.GG1867@nowhere> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110406145521.GG1867@nowhere> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1878 Lines: 47 Em Wed, Apr 06, 2011 at 04:55:23PM +0200, Frederic Weisbecker escreveu: > On Wed, Apr 06, 2011 at 11:09:58AM -0300, Arnaldo Carvalho de Melo wrote: > > 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 > > 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 > > Signed-off-by: Ingo Molnar > > Signed-off-by: Thomas Gleixner > > That forgets to mention it's based on Jiri Olsa's patch :) > > "tracing,mm - add kernel pagefault tracepoint for x86 & x86_64" > > (Message id <1289466549-7602-3-git-send-email-jolsa@redhat.com>). > > > > > Can we dust this one off and get the ball rolling again? > > I prefer someone comes with a real need before me or Jiri respin > that. There was perf trace but its development seems to be stale > now. Yeah, I need to resume work on it, sidetracked now tho. > The page fault software event seem to be enough for basic > dump requests. I don't like software events and prefer tracepoints > in general but as long as the current implementation is enough > and people don't need to measure page fault servicing time, > write scripts or so, we are probably fine. - ARnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/