1perf(1) 2======= 3 4NAME 5---- 6perf - Performance analysis tools for Linux 7 8SYNOPSIS 9-------- 10[verse] 11'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] 12 13OPTIONS 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 stderr - write debug output (option -v) to stderr 26 in browser mode 27 perf-event-open - Print perf_event_open() arguments and 28 return value 29 30--buildid-dir:: 31 Setup buildid cache directory. It has higher priority than 32 buildid.dir config file option. 33 34-v:: 35--version:: 36 Display perf version. 37 38-h:: 39--help:: 40 Run perf help command. 41 42DESCRIPTION 43----------- 44Performance counters for Linux are a new kernel-based subsystem 45that provide a framework for all things performance analysis. It 46covers hardware level (CPU/PMU, Performance Monitoring Unit) features 47and software features (software counters, tracepoints) as well. 48 49SEE ALSO 50-------- 51linkperf:perf-stat[1], linkperf:perf-top[1], 52linkperf:perf-record[1], linkperf:perf-report[1], 53linkperf:perf-list[1] 54