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@@ -22,6 +22,7 @@ OPTIONS
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<command>...::
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Any command you can specify in a shell.
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+
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-e::
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--event=::
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0:0: cpu-cycles
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@@ -45,6 +46,13 @@ OPTIONS
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1:4: migrations
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rNNN: raw PMU events (eventsel+umask)
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+-i::
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+--inherit::
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+ child tasks inherit counters
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+-p::
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+--pid=<pid>::
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+ stat events on existing pid
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+
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-a::
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system-wide collection
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@@ -54,20 +62,20 @@ OPTIONS
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EXAMPLES
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--------
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-$ perf stat sleep 1
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+$ perf stat -- make -j
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- Performance counter stats for 'sleep':
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+ Performance counter stats for 'make -j':
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- 0.678356 task clock ticks (msecs)
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- 7 context switches (events)
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- 4 CPU migrations (events)
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- 232 pagefaults (events)
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- 1810403 CPU cycles (events)
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- 946759 instructions (events)
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- 18952 cache references (events)
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- 4885 cache misses (events)
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+ 8117.370256 task clock ticks # 11.281 CPU utilization factor
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+ 678 context switches # 0.000 M/sec
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+ 133 CPU migrations # 0.000 M/sec
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+ 235724 pagefaults # 0.029 M/sec
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+ 24821162526 CPU cycles # 3057.784 M/sec
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+ 18687303457 instructions # 2302.138 M/sec
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+ 172158895 cache references # 21.209 M/sec
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+ 27075259 cache misses # 3.335 M/sec
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- Wall-clock time elapsed: 1001.252894 msecs
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+ Wall-clock time elapsed: 719.554352 msecs
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SEE ALSO
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--------
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