From 8c207692fc8fa3ea1a5ff97ad698efb09a81975a Mon Sep 17 00:00:00 2001 From: Shawn Bohrer Date: Tue, 30 Nov 2010 19:57:19 -0600 Subject: [PATCH] perf stat: Document missing options Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra LKML-Reference: <1291168642-11402-12-git-send-email-shawn.bohrer@gmail.com> Signed-off-by: Shawn Bohrer Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-stat.txt | 34 ++++++++++++++++++++------ 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index c405bcad6ac7..c469ba56c076 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -8,8 +8,8 @@ perf-stat - Run a command and gather performance counter statistics SYNOPSIS -------- [verse] -'perf stat' [-e | --event=EVENT] [-S] [-a] -'perf stat' [-e | --event=EVENT] [-S] [-a] -- [] +'perf stat' [-e | --event=EVENT] [-a] +'perf stat' [-e | --event=EVENT] [-a] -- [] DESCRIPTION ----------- @@ -35,21 +35,33 @@ OPTIONS child tasks do not inherit counters -p:: --pid=:: - stat events on existing pid + stat events on existing process id + +-t:: +--tid=:: + stat events on existing thread id + -a:: - system-wide collection +--all-cpus:: + system-wide collection from all CPUs -c:: - scale counter values +--scale:: + scale/normalize counter values + +-r:: +--repeat=:: + repeat command and print average + stddev (max: 100) -B:: +--big-num:: print large numbers with thousands' separators according to locale -C:: --cpu=:: -Count only on the list of cpus provided. Multiple CPUs can be provided as a -comma-sperated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2. +Count only on the list of CPUs provided. Multiple CPUs can be provided as a +comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2. In per-thread mode, this option is ignored. The -a option is still necessary to activate system-wide monitoring. Default is to count on all CPUs. @@ -58,6 +70,14 @@ to activate system-wide monitoring. Default is to count on all CPUs. Do not aggregate counts across all monitored CPUs in system-wide mode (-a). This option is only valid in system-wide mode. +-n:: +--null:: + null run - don't start any counters + +-v:: +--verbose:: + be more verbose (show counter open errors, etc) + EXAMPLES -------- -- 2.20.1