| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | perf(1) |
| 2 | ======= |
| 3 | |
| 4 | NAME |
| 5 | ---- |
| 6 | perf - Performance analysis tools for Linux |
| 7 | |
| 8 | SYNOPSIS |
| 9 | -------- |
| 10 | [verse] |
| 11 | 'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] |
| 12 | |
| 13 | OPTIONS |
| 14 | ------- |
| 15 | --debug:: |
| 16 | Setup debug variable (see list below) in value |
| 17 | range (0, 10). Use like: |
| 18 | --debug verbose # sets verbose = 1 |
| 19 | --debug verbose=2 # sets verbose = 2 |
| 20 | |
| 21 | List of debug variables allowed to set: |
| 22 | verbose - general debug messages |
| 23 | ordered-events - ordered events object debug messages |
| 24 | data-convert - data convert command debug messages |
| 25 | |
| 26 | --buildid-dir:: |
| 27 | Setup buildid cache directory. It has higher priority than |
| 28 | buildid.dir config file option. |
| 29 | |
| 30 | -v:: |
| 31 | --version:: |
| 32 | Display perf version. |
| 33 | |
| 34 | -h:: |
| 35 | --help:: |
| 36 | Run perf help command. |
| 37 | |
| 38 | DESCRIPTION |
| 39 | ----------- |
| 40 | Performance counters for Linux are a new kernel-based subsystem |
| 41 | that provide a framework for all things performance analysis. It |
| 42 | covers hardware level (CPU/PMU, Performance Monitoring Unit) features |
| 43 | and software features (software counters, tracepoints) as well. |
| 44 | |
| 45 | SEE ALSO |
| 46 | -------- |
| 47 | linkperf:perf-stat[1], linkperf:perf-top[1], |
| 48 | linkperf:perf-record[1], linkperf:perf-report[1], |
| 49 | linkperf:perf-list[1] |