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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-04 16:33:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-04 16:33:00 +0200 |
| commit | 20c84e959ec11b1803d2b2832eef703d5fbe7f7b (patch) | |
| tree | 92d53a1060f301391faa3f43194e1d34f3920665 /Documentation | |
| parent | perf report: Bail out if there are unrecognized options/arguments (diff) | |
| download | linux-20c84e959ec11b1803d2b2832eef703d5fbe7f7b.tar.xz linux-20c84e959ec11b1803d2b2832eef703d5fbe7f7b.zip | |
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: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/perf_counter/Documentation/perf-stat.txt | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/Documentation/perf_counter/Documentation/perf-stat.txt b/Documentation/perf_counter/Documentation/perf-stat.txt index a67d0e3b7d0d..a340e7be83dd 100644 --- a/Documentation/perf_counter/Documentation/perf-stat.txt +++ b/Documentation/perf_counter/Documentation/perf-stat.txt @@ -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 -------- |