Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755997Ab1DFMwf (ORCPT ); Wed, 6 Apr 2011 08:52:35 -0400 Received: from mail-qy0-f181.google.com ([209.85.216.181]:46473 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755763Ab1DFMwe (ORCPT ); Wed, 6 Apr 2011 08:52:34 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=kUrpIJ8/fjY8ujxXjq5lv7nmX6XHz6F6N+pbFukxSLabxqgHtJm1vNyZPqdFveaR3z EixShsFXaXXzA2roBWXx294nom1/jRAcxirTFuEa/pYlmdJOfmoJV6W+/vl9YJNqM95v 87tjzSYTniFPhe9lntrH0r+QU0+tD3avuDLYk= Date: Wed, 6 Apr 2011 14:52:28 +0200 From: Frederic Weisbecker To: Akihiro Nagai Cc: David Ahern , Arnaldo Carvalho de Melo , Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org, Masami Hiramatsu , 2nddept-manager@sdl.hitachi.co.jp, Paul Mackerras Subject: Re: [PATCH -tip v3 3/6] perf branch trace: print pid and command Message-ID: <20110406125226.GB1867@nowhere> References: <20110324113137.20235.42265.stgit@localhost6.localdomain6> <20110324113209.20235.61900.stgit@localhost6.localdomain6> <4D8B79E6.2050603@gmail.com> <4D8C6B1B.70409@hitachi.com> <4D8CAE74.9080805@gmail.com> <4D906450.1040809@hitachi.com> <4D909BBB.5020500@gmail.com> <20110401151313.GC2335@nowhere> <4D9996C8.4020703@hitachi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4D9996C8.4020703@hitachi.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2069 Lines: 44 On Mon, Apr 04, 2011 at 07:00:40PM +0900, Akihiro Nagai wrote: > (2011/04/02 0:13), Frederic Weisbecker wrote: > >On Mon, Mar 28, 2011 at 08:31:23AM -0600, David Ahern wrote: > >>On 03/28/11 04:34, Akihiro Nagai wrote: > >>>>from is sample->ip? to is sample->addr? In the above example > >>>>0x39d3015260 is the value from sample->addr, 1526f is sample->ip which > >>>>resolves to _dl_next_ld_env_entry from /lib64/ld-2.13.so. > >>>Yes. > >>>In this example, resolved address is only sample->ip (branch from). > >>>We need the resolved address of sample->addr (branch to) too, because > >>>both of them are addresses of execution code. > >> > >>Ok, now I understand. In that case add conversion of sample->addr to > >>symbols to perf-script. > > > >I agree that we should rather use perf script for branch dumps. > >Sorry Akihiro, I think we suggested you to create this dedicated > >perf branch by the past. But then perf script became the vanilla dump > >tool in the middle and it seems more suitable today. > > > >We can still create a perf branch later in order to produce some more > >advanced post-processing tools. But for sample dumps perf script (which starts > >to show itself as a misnomer BTW) seems to be the right place. > Finally, I would like to create coverage test tools using BTS on perf. > I'm working on the project "Btrax" that is a coverage test tool using BTS. > The URL is: http://sourceforge.net/projects/btrax/ Cool, what is this tool doing? How is it different from perf branch? > > And, I would like to implement other functions on perf-branch too. > For example, call graph, source code browser like perf-annotate which > can show executed codes. > So, I wolud like to continue to develop perf-branch. And you're very welcome to do so. Such features have a nice potential I think. Thanks. -- 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/