projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 84c6f88f HM |
1 | perf-lock(1) |
| 2 | ============ | |
| 3 | ||
| 4 | NAME | |
| 5 | ---- | |
| 6 | perf-lock - Analyze lock events | |
| 7 | ||
| 8 | SYNOPSIS | |
| 9 | -------- | |
| 10 | [verse] | |
| 11 | 'perf lock' {record|report|trace} | |
| 12 | ||
| 13 | DESCRIPTION | |
| 14 | ----------- | |
| 15 | You can analyze various lock behaviours | |
| 16 | and statistics with this 'perf lock' command. | |
| 17 | ||
| 18 | 'perf lock record <command>' records lock events | |
| 19 | between start and end <command>. And this command | |
| 20 | produces the file "perf.data" which contains tracing | |
| 21 | results of lock events. | |
| 22 | ||
| 23 | 'perf lock trace' shows raw lock events. | |
| 24 | ||
| 25 | 'perf lock report' reports statistical data. | |
| 26 | ||
| 9826e832 MS |
27 | COMMON OPTIONS |
| 28 | -------------- | |
| 4aace251 SB |
29 | |
| 30 | -i:: | |
| 31 | --input=<file>:: | |
| 32 | Input file name. | |
| 33 | ||
| 34 | -v:: | |
| 35 | --verbose:: | |
| 36 | Be more verbose (show symbol address, etc). | |
| 37 | ||
| 38 | -D:: | |
| 39 | --dump-raw-trace:: | |
| 40 | Dump raw trace in ASCII. | |
| 41 | ||
| 9826e832 MS |
42 | REPORT OPTIONS |
| 43 | -------------- | |
| 44 | ||
| 45 | -k:: | |
| 46 | --key=<value>:: | |
| 47 | Sorting key. Possible values: acquired (default), contended, | |
| 48 | wait_total, wait_max, wait_min. | |
| 49 | ||
| 84c6f88f HM |
50 | SEE ALSO |
| 51 | -------- | |
| 52 | linkperf:perf[1] |