Commit 20c84e95 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

perf stat: Update help text



Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent edc52dea
......@@ -22,6 +22,7 @@ OPTIONS
<command>...::
Any command you can specify in a shell.
-e::
--event=::
0:0: cpu-cycles
......@@ -45,6 +46,13 @@ OPTIONS
1:4: migrations
rNNN: raw PMU events (eventsel+umask)
-i::
--inherit::
child tasks inherit counters
-p::
--pid=<pid>::
stat events on existing pid
-a::
system-wide collection
......@@ -54,20 +62,20 @@ OPTIONS
EXAMPLES
--------
$ perf stat sleep 1
$ perf stat -- make -j
Performance counter stats for 'sleep':
Performance counter stats for 'make -j':
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)
8117.370256 task clock ticks # 11.281 CPU utilization factor
678 context switches # 0.000 M/sec
133 CPU migrations # 0.000 M/sec
235724 pagefaults # 0.029 M/sec
24821162526 CPU cycles # 3057.784 M/sec
18687303457 instructions # 2302.138 M/sec
172158895 cache references # 21.209 M/sec
27075259 cache misses # 3.335 M/sec
Wall-clock time elapsed: 1001.252894 msecs
Wall-clock time elapsed: 719.554352 msecs
SEE ALSO
--------
......
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