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yaml
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r: 147656
b: refs/heads/master
c: 20c84e9
h: refs/heads/master
v: v3
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Ingo Molnar committed Jun 4, 2009
1 parent 240ebe7 commit 25b9761
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: edc52deac624e4641211a325c23da2a73b01a85d
refs/heads/master: 20c84e959ec11b1803d2b2832eef703d5fbe7f7b
30 changes: 19 additions & 11 deletions trunk/Documentation/perf_counter/Documentation/perf-stat.txt
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Expand Up @@ -22,6 +22,7 @@ OPTIONS
<command>...::
Any command you can specify in a shell.


-e::
--event=::
0:0: cpu-cycles
Expand All @@ -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

Expand All @@ -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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