| perf-lock(1) |
| ============ |
| |
| NAME |
| ---- |
| perf-lock - Analyze lock events |
| |
| SYNOPSIS |
| -------- |
| [verse] |
| 'perf lock' {record|report|script|info} |
| |
| DESCRIPTION |
| ----------- |
| You can analyze various lock behaviours |
| and statistics with this 'perf lock' command. |
| |
| 'perf lock record <command>' records lock events |
| between start and end <command>. And this command |
| produces the file "perf.data" which contains tracing |
| results of lock events. |
| |
| 'perf lock report' reports statistical data. |
| |
| 'perf lock script' shows raw lock events. |
| |
| 'perf lock info' shows metadata like threads or addresses |
| of lock instances. |
| |
| COMMON OPTIONS |
| -------------- |
| |
| -i:: |
| --input=<file>:: |
| Input file name. (default: perf.data unless stdin is a fifo) |
| |
| -v:: |
| --verbose:: |
| Be more verbose (show symbol address, etc). |
| |
| -D:: |
| --dump-raw-trace:: |
| Dump raw trace in ASCII. |
| |
| -f:: |
| --force:: |
| Don't complain, do it. |
| |
| REPORT OPTIONS |
| -------------- |
| |
| -k:: |
| --key=<value>:: |
| Sorting key. Possible values: acquired (default), contended, |
| avg_wait, wait_total, wait_max, wait_min. |
| |
| INFO OPTIONS |
| ------------ |
| |
| -t:: |
| --threads:: |
| dump thread list in perf.data |
| |
| -m:: |
| --map:: |
| dump map of lock instances (address:name table) |
| |
| SEE ALSO |
| -------- |
| linkperf:perf[1] |
