aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/Documentation/perf.txt
blob: 401f0ed67439855b8ede71ff439c149e6f6eebbc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
perf(1)
=======

NAME
----
perf - Performance analysis tools for Linux

SYNOPSIS
--------
[verse]
'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]

OPTIONS
-------
--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

--buildid-dir::
	Setup buildid cache directory. It has higher priority than
	buildid.dir config file option.

-v::
--version::
  Display perf version.

-h::
--help::
  Run perf help command.

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]