perf.txt
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perf(1)
=======
NAME
----
perf - Performance analysis tools for Linux
SYNOPSIS
--------
[verse]
'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]
OPTIONS
-------
-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
-----------
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
--------
linkperf:perf-stat[1], linkperf:perf-top[1],
linkperf:perf-record[1], linkperf:perf-report[1],
linkperf:perf-list[1]