From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752203Ab3LKMj4 (ORCPT ); Wed, 11 Dec 2013 07:39:56 -0500 Received: from mga11.intel.com ([192.55.52.93]:21366 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751382Ab3LKMjv (ORCPT ); Wed, 11 Dec 2013 07:39:51 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,871,1378882800"; d="scan'208";a="442368668" From: Alexander Shishkin To: Peter Zijlstra , Arnaldo Carvalho de Melo Cc: Ingo Molnar , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Stephane Eranian , Andi Kleen , Adrian Hunter Subject: [PATCH v0 26/71] perf evsel: Add 'immediate' option Date: Wed, 11 Dec 2013 14:36:38 +0200 Message-Id: <1386765443-26966-27-git-send-email-alexander.shishkin@linux.intel.com> X-Mailer: git-send-email 1.8.4.rc2 In-Reply-To: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> References: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Adrian Hunter Add an option to cause a selected event to be enabled immediately when configured by perf_evsel__config(). This is needed when using the sched_switch tracepoint to follow object code execution. By having sched_switch enabled immediately the first sched_switch event always precedes the start of other tracing. Signed-off-by: Adrian Hunter --- tools/perf/util/evsel.c | 5 +++++ tools/perf/util/evsel.h | 1 + 2 files changed, 6 insertions(+) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index dbf737c..5fcd7cb 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -661,6 +661,11 @@ void perf_evsel__config(struct perf_evsel *evsel, */ if (target__none(&opts->target) && perf_evsel__is_group_leader(evsel)) attr->enable_on_exec = 1; + + if (evsel->immediate) { + attr->disabled = 0; + attr->enable_on_exec = 0; + } } int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index af38e2c..de1b36e 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -84,6 +84,7 @@ struct perf_evsel { bool supported; bool needs_swap; bool no_aux_samples; + bool immediate; /* parse modifier helper */ int exclude_GH; int nr_members; -- 1.8.5.1