From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758003AbcCCX7X (ORCPT ); Thu, 3 Mar 2016 18:59:23 -0500 Received: from mga11.intel.com ([192.55.52.93]:22657 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753593AbcCCX5v (ORCPT ); Thu, 3 Mar 2016 18:57:51 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,533,1449561600"; d="scan'208";a="929202087" From: Andi Kleen To: acme@kernel.org Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org, Andi Kleen Subject: [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Date: Thu, 3 Mar 2016 15:57:35 -0800 Message-Id: <1457049458-28956-5-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1457049458-28956-1-git-send-email-andi@firstfloor.org> References: <1457049458-28956-1-git-send-email-andi@firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) v6: Move time stamp first v7: More fixes (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..e513a1c 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 usec time stamp in fractions of second (with -I xxx) + - optional CPU, core, or socket identifier + - optional number of logical CPUs aggregated + - 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