Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756019Ab2EPPuz (ORCPT ); Wed, 16 May 2012 11:50:55 -0400 Received: from mail-gg0-f174.google.com ([209.85.161.174]:46619 "EHLO mail-gg0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755773Ab2EPPuy (ORCPT ); Wed, 16 May 2012 11:50:54 -0400 Date: Wed, 16 May 2012 12:50:48 -0300 From: Arnaldo Carvalho de Melo To: Jiri Olsa Cc: Dmitry Antipov , Peter Zijlstra , Paul Mackerras , Ingo Molnar , Amit Kucheria , linaro-dev@lists.linaro.org, linux-kernel@vger.kernel.org, Steven Rostedt Subject: Re: Perf record format portability Message-ID: <20120516155048.GG7864@infradead.org> References: <4FB275EB.5050904@linaro.org> <20120515155146.GB7864@infradead.org> <4FB38677.8070601@linaro.org> <20120516145927.GC7864@infradead.org> <20120516151655.GE1820@m.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120516151655.GE1820@m.brq.redhat.com> 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: 1602 Lines: 32 Em Wed, May 16, 2012 at 05:16:55PM +0200, Jiri Olsa escreveu: > On Wed, May 16, 2012 at 11:59:27AM -0300, Arnaldo Carvalho de Melo wrote: > > Adding Jiri and Steven to the CC list. > > > > Em Wed, May 16, 2012 at 02:50:31PM +0400, Dmitry Antipov escreveu: > > > On 05/15/2012 07:51 PM, Arnaldo Carvalho de Melo wrote: > > > >Em Tue, May 15, 2012 at 07:27:39PM +0400, Dmitry Antipov escreveu: > > > >>are there any thoughts on how much of the perf.data is portable and how much it should be? > > > >>I'm interesting in recording scheduler activity on one machine and then replaying on > > > >>another. As I can see, replaying x86 perf.data on ARM doesn't work. At least, should it > > > >>work with a small subset of recorded events (for example, sched:sched_switch, > > > >>sched:sched_process_exit, sched:sched_process_fork, sched:sched_wakeup > > > >>and sched:sched_migrate_task) on the same architecture? > > > > > > > >Endianness issues? ARM EB? There are some patches by Jiri Olsa that may > > > >help you if that is the case. > > latest version sent today, there's description of tests I did: > http://marc.info/?l=linux-kernel&m=133715172512742&w=2 > > Each time I run new sort of test, another endianity issue is hit. > so, tracepoints.. I'll check ;) The tracepoints part is a different problem, I think, but take a look anyway ;-) - 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/