| perf-stat(1) | |
| ========== | |
| NAME | |
| ---- | |
| perf-stat - Run a command and gather performance counter statistics | |
| SYNOPSIS | |
| -------- | |
| [verse] | |
| 'perf stat' [-e <EVENT> | --event=EVENT] [-l] [-a] <command> | |
| DESCRIPTION | |
| ----------- | |
| This command runs a command and gathers performance counter statistics | |
| from it. | |
| OPTIONS | |
| ------- | |
| <command>...:: | |
| Any command you can specify in a shell. | |
| -e:: | |
| --event=:: | |
| 0:0: cpu-cycles | |
| 0:0: cycles | |
| 0:1: instructions | |
| 0:2: cache-references | |
| 0:3: cache-misses | |
| 0:4: branch-instructions | |
| 0:4: branches | |
| 0:5: branch-misses | |
| 0:6: bus-cycles | |
| 1:0: cpu-clock | |
| 1:1: task-clock | |
| 1:2: page-faults | |
| 1:2: faults | |
| 1:5: minor-faults | |
| 1:6: major-faults | |
| 1:3: context-switches | |
| 1:3: cs | |
| 1:4: cpu-migrations | |
| 1:4: migrations | |
| rNNN: raw PMU events (eventsel+umask) | |
| -a:: | |
| system-wide collection | |
| -l:: | |
| scale counter values | |
| Configuration | |
| ------------- | |
| EXAMPLES | |
| -------- | |
| $ perf stat sleep 1 | |
| Performance counter stats for 'sleep': | |
| 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) | |
| Wall-clock time elapsed: 1001.252894 msecs | |
| SEE ALSO | |
| -------- | |
| linkperf:git-tops[1] |