diff options
-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 | |||
22 | <command>...:: | 22 | <command>...:: |
23 | Any command you can specify in a shell. | 23 | Any command you can specify in a shell. |
24 | 24 | ||
25 | |||
25 | -e:: | 26 | -e:: |
26 | --event=:: | 27 | --event=:: |
27 | 0:0: cpu-cycles | 28 | 0:0: cpu-cycles |
@@ -45,6 +46,13 @@ OPTIONS | |||
45 | 1:4: migrations | 46 | 1:4: migrations |
46 | rNNN: raw PMU events (eventsel+umask) | 47 | rNNN: raw PMU events (eventsel+umask) |
47 | 48 | ||
49 | -i:: | ||
50 | --inherit:: | ||
51 | child tasks inherit counters | ||
52 | -p:: | ||
53 | --pid=<pid>:: | ||
54 | stat events on existing pid | ||
55 | |||
48 | -a:: | 56 | -a:: |
49 | system-wide collection | 57 | system-wide collection |
50 | 58 | ||
@@ -54,20 +62,20 @@ OPTIONS | |||
54 | EXAMPLES | 62 | EXAMPLES |
55 | -------- | 63 | -------- |
56 | 64 | ||
57 | $ perf stat sleep 1 | 65 | $ perf stat -- make -j |
58 | 66 | ||
59 | Performance counter stats for 'sleep': | 67 | Performance counter stats for 'make -j': |
60 | 68 | ||
61 | 0.678356 task clock ticks (msecs) | 69 | 8117.370256 task clock ticks # 11.281 CPU utilization factor |
62 | 7 context switches (events) | 70 | 678 context switches # 0.000 M/sec |
63 | 4 CPU migrations (events) | 71 | 133 CPU migrations # 0.000 M/sec |
64 | 232 pagefaults (events) | 72 | 235724 pagefaults # 0.029 M/sec |
65 | 1810403 CPU cycles (events) | 73 | 24821162526 CPU cycles # 3057.784 M/sec |
66 | 946759 instructions (events) | 74 | 18687303457 instructions # 2302.138 M/sec |
67 | 18952 cache references (events) | 75 | 172158895 cache references # 21.209 M/sec |
68 | 4885 cache misses (events) | 76 | 27075259 cache misses # 3.335 M/sec |
69 | 77 | ||
70 | Wall-clock time elapsed: 1001.252894 msecs | 78 | Wall-clock time elapsed: 719.554352 msecs |
71 | 79 | ||
72 | SEE ALSO | 80 | SEE ALSO |
73 | -------- | 81 | -------- |