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 stderr - write debug output (option -v) to stderr in browser mode perf-event-open - Print perf_event_open() arguments and return value --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]