From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752410AbbFVSY4 (ORCPT ); Mon, 22 Jun 2015 14:24:56 -0400 Received: from mail.kernel.org ([198.145.29.136]:54410 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751511AbbFVSYt (ORCPT ); Mon, 22 Jun 2015 14:24:49 -0400 Date: Mon, 22 Jun 2015 15:24:44 -0300 From: Arnaldo Carvalho de Melo To: Adrian Hunter Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Jiri Olsa Subject: Re: [PATCH V6 08/17] perf tools: Add Intel PT support Message-ID: <20150622182444.GI13937@kernel.org> References: <1432906425-9911-1-git-send-email-adrian.hunter@intel.com> <1432906425-9911-9-git-send-email-adrian.hunter@intel.com> <20150619160451.GM3079@kernel.org> <55846E97.3050705@intel.com> <20150619194156.GE31188@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150619194156.GE31188@kernel.org> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Fri, Jun 19, 2015 at 04:41:56PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, Jun 19, 2015 at 10:33:43PM +0300, Adrian Hunter escreveu: > > On 19/06/2015 7:04 p.m., Arnaldo Carvalho de Melo wrote: > > >Em Fri, May 29, 2015 at 04:33:36PM +0300, Adrian Hunter escreveu: > > >>Add support for Intel Processor Trace. > > > >>Intel PT support fits within the new auxtrace infrastructure. > > >>Recording is supporting by identifying the Intel PT PMU, > > >>parsing options and setting up events. Decoding is supported > > >>by queuing up trace data by cpu or thread and then decoding > > >>synchronously delivering synthesized event samples into the > > >>session processing for tools to consume. > > > >So, at this point what commands should I use to test this? I expected to > > >be able to have some command here, in this changeset log, telling me > > >that what has been applied so far + this "Add Intel PT support", can be > > >used in such and such a fashion, obtaining this and that output. > > > >Now I'll go back and look at the cover letter to see what I can do at > > >this point and with access to a Broadwell class machine. > > > Actually you need the next patch "perf tools: Take Intel PT into use" to do anything. > > Yeah, saw that, the title of this patch fooled me into thinking that > Intel PT support was added :-) > > Anyway, stopping for a moment to push stuff ready to Ingo, will get back > to this after that. So, got back to it, added that "take it into use" patch and now trying to follow that documentation: [root@perf4 ~]# perf evlist intel_pt//u sched:sched_switch dummy:u [root@perf4 ~]# perf report [root@perf4 ~]# perf record -e intel_pt//u -a sleep 10 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.379 MB perf.data ] [root@perf4 ~]# [root@perf4 ~]# [root@perf4 ~]# perf report [root@perf4 ~]# perf evlist intel_pt//u sched:sched_switch dummy:u [root@perf4 ~]# uname -r 4.1.0-rc8 [root@perf4 ~]# I am not getting any "intel_pt//u" event, ideas? - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/