| perf(1) | 
 | ======= | 
 |  | 
 | NAME | 
 | ---- | 
 | perf - Performance analysis tools for Linux | 
 |  | 
 | SYNOPSIS | 
 | -------- | 
 | [verse] | 
 | 'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] | 
 |  | 
 | OPTIONS | 
 | ------- | 
 | --debug:: | 
 | 	Setup debug variable (see list below) in value | 
 | 	range (0, 10). Use like: | 
 | 	  --debug verbose   # sets verbose = 1 | 
 | 	  --debug verbose=2 # sets verbose = 2 | 
 |  | 
 | 	List of debug variables allowed to set: | 
 | 	  verbose          - general debug messages | 
 | 	  ordered-events   - ordered events object debug messages | 
 | 	  data-convert     - data convert command debug messages | 
 |  | 
 | --buildid-dir:: | 
 | 	Setup buildid cache directory. It has higher priority than | 
 | 	buildid.dir config file option. | 
 |  | 
 | -v:: | 
 | --version:: | 
 |   Display perf version. | 
 |  | 
 | -h:: | 
 | --help:: | 
 |   Run perf help command. | 
 |  | 
 | DESCRIPTION | 
 | ----------- | 
 | Performance counters for Linux are a new kernel-based subsystem | 
 | that provide a framework for all things performance analysis. It | 
 | covers hardware level (CPU/PMU, Performance Monitoring Unit) features | 
 | and software features (software counters, tracepoints) as well. | 
 |  | 
 | SEE ALSO | 
 | -------- | 
 | linkperf:perf-stat[1], linkperf:perf-top[1], | 
 | linkperf:perf-record[1], linkperf:perf-report[1], | 
 | linkperf:perf-list[1] |