PERF(1)

NAME
perf - Performance analysis tools for Linux

SYNOPSIS

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

perf-stat(1), perf-top(1), perf-record(1), perf-report(1), perf-list(1)