From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753314Ab3JBJCe (ORCPT ); Wed, 2 Oct 2013 05:02:34 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:59909 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753041Ab3JBJCb (ORCPT ); Wed, 2 Oct 2013 05:02:31 -0400 From: Ramkumar Ramachandra To: LKML Cc: Ingo Molnar , Namhyung Kim , Arnaldo Carvalho de Melo , David Ahern Subject: [PATCH] perf tool: add example to perf-trace documentation Date: Wed, 2 Oct 2013 14:25:18 +0530 Message-Id: <1380704118-12377-1-git-send-email-artagnon@gmail.com> X-Mailer: git-send-email 1.8.4.477.g5d89aa9 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's not clear that perf trace must be run as a privileged user, so include an example demonstrating its usage with sudo. While at it, update the synopsis to include options. Cc: Ingo Molnar Cc: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: David Ahern Signed-off-by: Ramkumar Ramachandra --- tools/perf/Documentation/perf-trace.txt | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index daccd2c..4ad8950 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -8,7 +8,7 @@ perf-trace - strace inspired tool SYNOPSIS -------- [verse] -'perf trace' +'perf trace' [] DESCRIPTION ----------- @@ -78,6 +78,26 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. --input Process events from a given perf data file. +EXAMPLES +-------- + +$ sudo perf trace -a -e open + + 349.934 ( 0.012 ms): 832 open(filename: 0xc1a4f0, flags: RDONLY ) = 14 + 349.985 ( 0.004 ms): 832 open(filename: 0xb390e0, flags: RDONLY ) = 14 + 350.012 ( 0.004 ms): 832 open(filename: 0xa9c930, flags: RDONLY ) = 14 + 350.037 ( 0.003 ms): 832 open(filename: 0xc1a4f0, flags: RDONLY ) = 14 + 350.060 ( 0.003 ms): 832 open(filename: 0xb390e0, flags: RDONLY ) = 14 + 349.943 ( 0.010 ms): 9379 open(filename: 0x17d3080, flags: RDONLY ) = 19 + 350.213 ( 0.003 ms): 832 open(filename: 0xc93d10, flags: RDONLY ) = 14 + 350.307 ( 0.002 ms): 832 open(filename: 0xc64820, flags: RDONLY ) = 14 + 350.399 ( 0.002 ms): 832 open(filename: 0xea20f0, flags: RDONLY ) = 14 + 350.481 ( 0.002 ms): 832 open(filename: 0xbfb940, flags: RDONLY ) = 14 + 350.567 ( 0.002 ms): 832 open(filename: 0xb3edb0, flags: RDONLY ) = 14 + 850.345 ( 0.010 ms): 832 open(filename: 0xb72ba0, flags: RDONLY ) = 14 + 850.390 ( 0.003 ms): 832 open(filename: 0xfd8860, flags: RDONLY ) = 14 + 850.414 ( 0.003 ms): 832 open(filename: 0xee4740, flags: RDONLY ) = 14 + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-script[1] -- 1.8.4.477.g5d89aa9