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1 | perf-top(1) | ||
2 | =========== | ||
3 | |||
4 | NAME | ||
5 | ---- | ||
6 | perf-top - Run a command and profile it | ||
7 | |||
8 | SYNOPSIS | ||
9 | -------- | ||
10 | [verse] | ||
11 | 'perf top' [-e <EVENT> | --event=EVENT] [-l] [-a] <command> | ||
12 | |||
13 | DESCRIPTION | ||
14 | ----------- | ||
15 | This command runs a command and gathers a performance counter profile | ||
16 | from it. | ||
17 | |||
18 | |||
19 | OPTIONS | ||
20 | ------- | ||
21 | <command>...:: | ||
22 | Any command you can specify in a shell. | ||
23 | |||
24 | -e:: | ||
25 | --event=:: | ||
26 | Select the PMU event. Selection can be a symbolic event name | ||
27 | (use 'perf list' to list all events) or a raw PMU | ||
28 | event (eventsel+umask) in the form of rNNN where NNN is a | ||
29 | hexadecimal event descriptor. | ||
30 | |||
31 | -a:: | ||
32 | system-wide collection | ||
33 | |||
34 | -l:: | ||
35 | scale counter values | ||
36 | |||
37 | SEE ALSO | ||
38 | -------- | ||
39 | linkperf:perf-stat[1], linkperf:perf-list[1] | ||