perf(1) — Linux manual page

NAME | SYNOPSIS | OPTIONS | DESCRIPTION | SEE ALSO | COLOPHON

PERF(1)                        perf Manual                       PERF(1)

NAME         top

       perf - Performance analysis tools for Linux

SYNOPSIS         top

       perf [--version] [--help] [OPTIONS] COMMAND [ARGS]

OPTIONS         top

       -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         top

       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         top

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

COLOPHON         top

       This page is part of the perf (Performance analysis tools for
       Linux (in Linux source tree)) project.  Information about the
       project can be found at 
       ⟨https://perf.wiki.kernel.org/index.php/Main_Page⟩.  If you have a
       bug report for this manual page, send it to
       linux-kernel@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git⟩
       on 2021-04-01.  (At that time, the date of the most recent commit
       that was found in the repository was 2021-03-31.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

perf                           2020-09-17                        PERF(1)

Pages that refer to this page: perf-bench(1)perf-config(1)perf-data(1)perf-help(1)perf-lock(1)perf_event_open(2)