6 perf-annotate - Read perf.data (created by perf record) and display annotated code
11 'perf annotate' [-i <file> | --input=file] [symbol_name]
15 This command reads the input file and displays an annotated version of the
16 code. If the object file has debug symbols then the source code will be
17 displayed alongside assembly code.
19 If there is no debug info in the object, then annotated assembly is displayed.
25 Input file name. (default: perf.data unless stdin is a fifo)
28 --dsos=<dso[,dso...]>::
29 Only consider symbols in these dsos.
36 Don't do ownership validation.
40 Be more verbose. (Show symbol address, etc)
44 Do not show any warnings or messages. (Suppress -v)
48 Show the number of samples for each symbol
52 Dump raw trace in ASCII.
62 Options for decoding instruction tracing data. The options are:
66 To disable decoding entirely, use --no-itrace.
70 Load module symbols. WARNING: use only with -k and LIVE kernel.
74 Print matching source lines (may be slow).
78 Don't shorten the displayed pathnames.
80 --stdio:: Use the stdio interface.
82 --stdio2:: Use the stdio2 interface, non-interactive, uses the TUI formatting.
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
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.
96 --gtk:: Use the GTK interface.
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
105 Show raw instruction encoding of assembly instructions.
107 --show-total-period:: Show a column with the sum of periods.
110 Interleave source code with assembly code. Enabled by default,
111 disable with --no-source.
113 --symfs=<directory>::
114 Look for files with symbols relative to this directory.
117 --disassembler-style=:: Set disassembler style for objdump.
120 Path to addr2line binary.
123 Path to objdump binary.
127 Remove first N entries from source file path names in executables
128 and add PREFIX. This allows to display source code compiled on systems
129 with different file system layout.
132 Skip symbols that cannot be annotated.
135 Show event group information together
138 Demangle symbol names to human readable form. It's enabled by default,
139 disable with --no-demangle.
142 Demangle kernel symbol names to human readable form (for C++ kernels).
145 Set annotation percent type from following choices:
146 global-period, local-period, global-hits, local-hits
148 The local/global keywords set if the percentage is computed
149 in the scope of the function (local) or the whole data (global).
150 The period/hits keywords set the base the percentage is computed
151 on - the samples period or the number of samples (hits).
154 Do not show functions which have an overhead under that percent on
155 stdio or stdio2 (Default: 0). Note that this is about selection of
156 functions to display, not about lines within the function.
158 --data-type[=TYPE_NAME]::
159 Display data type annotation instead of code. It infers data type of
160 samples (if they are memory accessing instructions) using DWARF debug
161 information. It can take an optional argument of data type name. In
162 that case it'd show annotation for the type only, otherwise it'd show
163 all data types it finds.
166 Show stats for the data type annotation.
169 Do not display empty (or dummy) events.
174 linkperf:perf-record[1], linkperf:perf-report[1]