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perf-stat(1)
==========
NAME
----
perf-stat - Run a command and gather performance counter statistics
SYNOPSIS
--------
[verse]
'perf stat' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
DESCRIPTION
-----------
This command runs a command and gathers performance counter statistics
from it.
OPTIONS
-------
<command>...::
Any command you can specify in a shell.
-e::
--event=::
0:0: cpu-cycles
0:0: cycles
0:1: instructions
0:2: cache-references
0:3: cache-misses
0:4: branch-instructions
0:4: branches
0:5: branch-misses
0:6: bus-cycles
1:0: cpu-clock
1:1: task-clock
1:2: page-faults
1:2: faults
1:5: minor-faults
1:6: major-faults
1:3: context-switches
1:3: cs
1:4: cpu-migrations
1:4: migrations
rNNN: raw PMU events (eventsel+umask)
-a::
system-wide collection
-l::
scale counter values
Configuration
-------------
EXAMPLES
--------
$ perf stat sleep 1
Performance counter stats for 'sleep':
0.678356 task clock ticks (msecs)
7 context switches (events)
4 CPU migrations (events)
232 pagefaults (events)
1810403 CPU cycles (events)
946759 instructions (events)
18952 cache references (events)
4885 cache misses (events)
Wall-clock time elapsed: 1001.252894 msecs
SEE ALSO
--------
linkperf:git-tops[1]
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