PERF-HELP(1) perf Manual PERF-HELP(1)
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.
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 ⟨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
2017-07-05. If you discover any rendering problems in this HTML ver‐
sion 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 man‐
ual page), send a mail to man-pages@man7.org