perf-stat(1) ============ NAME ---- perf-stat - Run a command and gather performance counter statistics SYNOPSIS -------- [verse] 'perf stat' [-e <EVENT> | --event=EVENT] [-S] [-a] <command> 'perf stat' [-e <EVENT> | --event=EVENT] [-S] [-a] -- <command> [<options>] 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=:: Select the PMU event. Selection can be a symbolic event name (use 'perf list' to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. -i:: --inherit:: child tasks inherit counters -p:: --pid=<pid>:: stat events on existing pid -a:: system-wide collection -c:: scale counter values EXAMPLES -------- $ perf stat -- make -j Performance counter stats for 'make -j': 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: 719.554352 msecs SEE ALSO -------- linkperf:perf-top[1], linkperf:perf-list[1]