perf-help(1) — Linux manual page


PERF-HELP(1)                   perf Manual                  PERF-HELP(1)

NAME         top

       perf-help - display help information about perf

SYNOPSIS         top

       perf help [-a|--all] [COMMAND]

DESCRIPTION         top

       With no options and no COMMAND given, the synopsis of the perf
       command and a list of the most commonly used perf commands are
       printed on the standard output.

       If the option --all or -a is given, then all available commands
       are printed on the standard output.

       If a perf command is named, a manual page for that command is
       brought up. The man program is used by default for this purpose,
       but this can be overridden by other options or configuration

       Note that perf --help ... is identical to perf help ... because
       the former is internally converted into the latter.

OPTIONS         top

       -a, --all
           Prints all the available commands on the standard output.
           This option supersedes any other option.

PERF         top

       Part of the perf(1) suite

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 
       ⟨⟩.  If you have a
       bug report for this manual page, send it to  This page was obtained from the
       project's upstream Git repository
       on 2023-12-22.  (At that time, the date of the most recent commit
       that was found in the repository was 2023-12-21.)  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

perf                           2009-06-06                   PERF-HELP(1)

Pages that refer to this page: perf(1)