Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752859Ab3FYP4l (ORCPT ); Tue, 25 Jun 2013 11:56:41 -0400 Received: from mail-pa0-f45.google.com ([209.85.220.45]:63980 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751182Ab3FYP4i (ORCPT ); Tue, 25 Jun 2013 11:56:38 -0400 Message-ID: <51C9BDB2.7060905@gmail.com> Date: Tue, 25 Jun 2013 09:56:34 -0600 From: David Ahern User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Adrian Hunter , Stephane Eranian CC: Arnaldo Carvalho de Melo , linux-kernel@vger.kernel.org, Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Peter Zijlstra Subject: Re: [PATCH 12/15] perf tools: allow non-matching sample types References: <1372079772-20803-1-git-send-email-adrian.hunter@intel.com> <1372079772-20803-13-git-send-email-adrian.hunter@intel.com> In-Reply-To: <1372079772-20803-13-git-send-email-adrian.hunter@intel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1168 Lines: 31 On 6/24/13 7:16 AM, Adrian Hunter wrote: > Sample types need not be identical to determine > the sample id from the event. Only the position > of the sample id needs to be the same. > > Compatible sample types are ones in which the bits > defined by PERF_COMPAT_MASK are the same. > 'perf_evlist__config()' forces sample types to be > compatible on that basis. Something is still missing to support different sample_types for events. Consider the case (S/W event + tracepoint): perf record -e cs -c1 -e sched:sched_switch -a -- sleep 1 perf script This patch addresses the sample_type mismatch error message, but I get no event samples in the output. Besides the usual header I get: No trace sample to read. Did you call 'perf record -R'? It's a 16-cpu box with 5 VMs running. I know there should be at least a few samples in 1 second. Stephane: are you looking at allowing sample_types per event? David -- 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/