---
name: "perf_3.2-help"
section: "1"
platform: "linux"
package: "linux-tools-3.2"
version: "3.2.17-1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/perf_3.2-help"
---

# perf\_3.2-help(1)

display help information about perf

## NAME

perf-help - display help information about perf

## SYNOPSIS

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

## DESCRIPTION

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

- \-a, --all

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

## PERF

Part of the [**perf**(1)](/perf/1.md) suite