1perf-annotate(1)
2================
3
4NAME
5----
6perf-annotate - Read perf.data (created by perf record) and display annotated code
7
8SYNOPSIS
9--------
10[verse]
11'perf annotate' [-i <file> | --input=file] [symbol_name]
12
13DESCRIPTION
14-----------
15This command reads the input file and displays an annotated version of the
16code. If the object file has debug symbols then the source code will be
17displayed alongside assembly code.
18
19If there is no debug info in the object, then annotated assembly is displayed.
20
21OPTIONS
22-------
23-i::
24--input=<file>::
25        Input file name. (default: perf.data unless stdin is a fifo)
26
27-d::
28--dsos=<dso[,dso...]>::
29        Only consider symbols in these dsos.
30-s::
31--symbol=<symbol>::
32        Symbol to annotate.
33
34-f::
35--force::
36        Don't do ownership validation.
37
38-v::
39--verbose::
40        Be more verbose. (Show symbol address, etc)
41
42-q::
43--quiet::
44	Do not show any message.  (Suppress -v)
45
46-n::
47--show-nr-samples::
48	Show the number of samples for each symbol
49
50-D::
51--dump-raw-trace::
52        Dump raw trace in ASCII.
53
54-k::
55--vmlinux=<file>::
56        vmlinux pathname.
57
58--ignore-vmlinux::
59	Ignore vmlinux files.
60
61--itrace::
62	Options for decoding instruction tracing data. The options are:
63
64include::itrace.txt[]
65
66	To disable decoding entirely, use --no-itrace.
67
68-m::
69--modules::
70        Load module symbols. WARNING: use only with -k and LIVE kernel.
71
72-l::
73--print-line::
74        Print matching source lines (may be slow).
75
76-P::
77--full-paths::
78        Don't shorten the displayed pathnames.
79
80--stdio:: Use the stdio interface.
81
82--stdio2:: Use the stdio2 interface, non-interactive, uses the TUI formatting.
83
84--stdio-color=<mode>::
85	'always', 'never' or 'auto', allowing configuring color output
86	via the command line, in addition to via "color.ui" .perfconfig.
87	Use '--stdio-color always' to generate color even when redirecting
88	to a pipe or file. Using just '--stdio-color' is equivalent to
89	using 'always'.
90
91--tui:: Use the TUI interface. Use of --tui requires a tty, if one is not
92	present, as when piping to other commands, the stdio interface is
93	used. This interfaces starts by centering on the line with more
94	samples, TAB/UNTAB cycles through the lines with more samples.
95
96--gtk:: Use the GTK interface.
97
98-C::
99--cpu=<cpu>:: Only report samples for the list of CPUs provided. Multiple CPUs can
100	be provided as a comma-separated list with no space: 0,1. Ranges of
101	CPUs are specified with -: 0-2. Default is to report samples on all
102	CPUs.
103
104--asm-raw::
105	Show raw instruction encoding of assembly instructions.
106
107--show-total-period:: Show a column with the sum of periods.
108
109--source::
110	Interleave source code with assembly code. Enabled by default,
111	disable with --no-source.
112
113--symfs=<directory>::
114        Look for files with symbols relative to this directory.
115
116-M::
117--disassembler-style=:: Set disassembler style for objdump.
118
119--objdump=<path>::
120        Path to objdump binary.
121
122--prefix=PREFIX::
123--prefix-strip=N::
124	Remove first N entries from source file path names in executables
125	and add PREFIX. This allows to display source code compiled on systems
126	with different file system layout.
127
128--skip-missing::
129	Skip symbols that cannot be annotated.
130
131--group::
132	Show event group information together
133
134--demangle::
135	Demangle symbol names to human readable form. It's enabled by default,
136	disable with --no-demangle.
137
138--demangle-kernel::
139	Demangle kernel symbol names to human readable form (for C++ kernels).
140
141--percent-type::
142	Set annotation percent type from following choices:
143	  global-period, local-period, global-hits, local-hits
144
145	The local/global keywords set if the percentage is computed
146	in the scope of the function (local) or the whole data (global).
147	The period/hits keywords set the base the percentage is computed
148	on - the samples period or the number of samples (hits).
149
150--percent-limit::
151	Do not show functions which have an overhead under that percent on
152	stdio or stdio2 (Default: 0).  Note that this is about selection of
153	functions to display, not about lines within the function.
154
155SEE ALSO
156--------
157linkperf:perf-record[1], linkperf:perf-report[1]
158