From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753954AbdAZPei (ORCPT ); Thu, 26 Jan 2017 10:34:38 -0500 Received: from terminus.zytor.com ([65.50.211.136]:48260 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753432AbdAZPef (ORCPT ); Thu, 26 Jan 2017 10:34:35 -0500 Date: Thu, 26 Jan 2017 07:33:59 -0800 From: tip-bot for Arnaldo Carvalho de Melo Message-ID: Cc: dsahern@gmail.com, mingo@kernel.org, hpa@zytor.com, paulus@samba.org, namhyung@kernel.org, a.p.zijlstra@chello.nl, adrian.hunter@intel.com, tglx@linutronix.de, rostedt@goodmis.org, linux-kernel@vger.kernel.org, eranian@google.com, acme@redhat.com, wangnan0@huawei.com, mhiramat@kernel.org, jolsa@kernel.org, fweisbec@gmail.com, jeder@redhat.com Reply-To: wangnan0@huawei.com, acme@redhat.com, eranian@google.com, linux-kernel@vger.kernel.org, rostedt@goodmis.org, mhiramat@kernel.org, jeder@redhat.com, fweisbec@gmail.com, jolsa@kernel.org, dsahern@gmail.com, mingo@kernel.org, paulus@samba.org, namhyung@kernel.org, tglx@linutronix.de, a.p.zijlstra@chello.nl, adrian.hunter@intel.com, hpa@zytor.com To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf ftrace: Make 'function_graph' be the default tracer Git-Commit-ID: ec347870a9d423a4b88657d6a85b5163b3f949ee X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: ec347870a9d423a4b88657d6a85b5163b3f949ee Gitweb: http://git.kernel.org/tip/ec347870a9d423a4b88657d6a85b5163b3f949ee Author: Arnaldo Carvalho de Melo AuthorDate: Wed, 18 Jan 2017 21:49:14 -0300 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 26 Jan 2017 11:43:01 -0300 perf ftrace: Make 'function_graph' be the default tracer So that we can suppress the '-t function_graph' and get a more compact command line: # perf ftrace usleep 123456 | grep raw_spin_lock | sort -k2 -nr | head -5 2) 0.555 us | _raw_spin_lock(); 2) 0.516 us | _raw_spin_lock(); 2) 0.410 us | _raw_spin_lock_irq(); 2) 0.374 us | _raw_spin_lock_irqsave(); # Tested-by: Masami Hiramatsu Cc: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jeremy Eder Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Steven Rostedt Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-ss9xgx5htpxcv86x42pnh3m6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-ftrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index c320ae2..d05658d 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -202,6 +202,7 @@ int cmd_ftrace(int argc, const char **argv, const char *prefix __maybe_unused) { int ret; struct perf_ftrace ftrace = { + .tracer = "function_graph", .target = { .uid = UINT_MAX, }, }; const char * const ftrace_usage[] = { @@ -211,7 +212,7 @@ int cmd_ftrace(int argc, const char **argv, const char *prefix __maybe_unused) }; const struct option ftrace_options[] = { OPT_STRING('t', "tracer", &ftrace.tracer, "tracer", - "tracer to use: function_graph or function"), + "tracer to use: function_graph(default) or function"), OPT_INCR('v', "verbose", &verbose, "be more verbose"), OPT_END()