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perf stat: Document missing options

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Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1291168642-11402-12-git-send-email-shawn.bohrer@gmail.com>
Signed-off-by: Shawn Bohrer <shawn.bohrer@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Shawn Bohrer 2010-11-30 19:57:19 -06:00 committed by Arnaldo Carvalho de Melo
parent f68d6bd451
commit 8c207692fc
1 changed files with 27 additions and 7 deletions
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34
tools/perf/Documentation/perf-stat.txt
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@ -8,8 +8,8 @@ perf-stat - Run a command and gather performance counter statistics
SYNOPSIS
--------
[verse]
'perf stat' [-e <EVENT> | --event=EVENT] [-S] [-a] <command>
'perf stat' [-e <EVENT> | --event=EVENT] [-S] [-a] -- <command> [<options>]
'perf stat' [-e <EVENT> | --event=EVENT] [-a] <command>
'perf stat' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
DESCRIPTION
-----------
@ -35,21 +35,33 @@ OPTIONS
child tasks do not inherit counters
-p::
--pid=<pid>::
stat events on existing pid
stat events on existing process id
-t::
--tid=<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=<n>::
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
--------