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 variables.

       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
       2020-02-08.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-02-07.)  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                             01/30/2020                     PERF-HELP(1)