perf(1) ======= NAME ---- perf - Performance analysis tools for Linux SYNOPSIS -------- [verse] 'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] OPTIONS ------- -h:: --help:: Run perf help command. -v:: --version:: Display perf version. -vv:: Print the compiled-in status of libraries. --exec-path:: Display or set exec path. --html-path:: Display html documentation path. -p:: --paginate:: Set up pager. --no-pager:: Do not set pager. --buildid-dir:: Setup buildid cache directory. It has higher priority than buildid.dir config file option. --list-cmds:: List the most commonly used perf commands. --list-opts:: List available perf options. --debugfs-dir:: Set debugfs directory or set environment variable PERF_DEBUGFS_DIR. --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 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] linkperf:perf-annotate[1],linkperf:perf-archive[1], linkperf:perf-bench[1], linkperf:perf-buildid-cache[1], linkperf:perf-buildid-list[1], linkperf:perf-c2c[1], linkperf:perf-config[1], linkperf:perf-data[1], linkperf:perf-diff[1], linkperf:perf-evlist[1], linkperf:perf-ftrace[1], linkperf:perf-help[1], linkperf:perf-inject[1], linkperf:perf-intel-pt[1], linkperf:perf-kallsyms[1], linkperf:perf-kmem[1], linkperf:perf-kvm[1], linkperf:perf-lock[1], linkperf:perf-mem[1], linkperf:perf-probe[1], linkperf:perf-sched[1], linkperf:perf-script[1], linkperf:perf-test[1], linkperf:perf-trace[1], linkperf:perf-version[1]