From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755100AbcCBLXw (ORCPT ); Wed, 2 Mar 2016 06:23:52 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58032 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753876AbcCBLXv (ORCPT ); Wed, 2 Mar 2016 06:23:51 -0500 Date: Wed, 2 Mar 2016 12:23:46 +0100 From: Jiri Olsa To: Andi Kleen Cc: acme@kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org, Andi Kleen Subject: Re: [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Message-ID: <20160302112346.GC7272@krava> References: <1456858672-21594-1-git-send-email-andi@firstfloor.org> <1456858672-21594-5-git-send-email-andi@firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1456858672-21594-5-git-send-email-andi@firstfloor.org> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 01, 2016 at 10:57:49AM -0800, Andi Kleen wrote: > From: Andi Kleen > > With all the recently added fields in the perf stat CSV output > we should finally document them in the man page. Do this here. > > v2: Fix fields in documentation (Jiri) > v3: fix order of fields again (Jiri) > v4: Change order again. > v5: Document more fields (Jiri) > Signed-off-by: Andi Kleen > --- > tools/perf/Documentation/perf-stat.txt | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt > index 52ef7a9..de1586b 100644 > --- a/tools/perf/Documentation/perf-stat.txt > +++ b/tools/perf/Documentation/perf-stat.txt > @@ -211,6 +211,29 @@ $ perf stat -- make -j > > Wall-clock time elapsed: 719.554352 msecs > > +CSV FORMAT > +---------- > + > +With -x, perf stat is able to output a not-quite-CSV format output > +Commas in the output are not put into "". To make it easy to parse > +it is recommended to use a different character like -x \; > + > +The fields are in this order: > + > + - optional CPU, core, or socket identifier ^ trailing whitespace > + - optional number of cores aggregated > + - optional usec time stamp in fractions of second (with -I xxx) the interval time should be the first item [jolsa@krava perf]$ sudo ./perf stat --per-socket -a -I 1000 -x, -e cycles 1.000159610,S0,4,298027426,,cycles,4002819542,100.00 1.409246878,S0,4,110643936,,cycles,1637336562,100.00 [jolsa@krava perf]$ sudo ./perf stat --per-core -a -I 1000 -x, -e cycles 1.000145489,S0-C0,2,130631326,,cycles,2001381034,100.00 1.000145489,S0-C1,2,161500168,,cycles,2001374772,100.00 1.448799712,S0-C0,2,102189718,,cycles,897831386,100.00 1.448799712,S0-C1,2,112392552,,cycles,897832554,100.00 [jolsa@krava perf]$ sudo ./perf stat -A -a -I 1000 -x, -e cycles 1.000127414,CPU0,88288182,,cycles,1000705402,100.00 1.000127414,CPU1,63578396,,cycles,1000704841,100.00 jirka > + - counter value > + - unit of the counter value or empty > + - event name > + - run time of counter > + - percentage of measurement time the counter was running > + - optional variance if multiple values are collected with -r > + - optional metric value > + - optional unit of metric > + > +Additional metrics may be printed with all earlier fields being empty. > + > SEE ALSO > -------- > linkperf:perf-top[1], linkperf:perf-list[1] > -- > 2.5.0 >