tools/perf/Documentation/perf-trace.txt

   1 perf-trace(1)
   2 ==============
   3
   4 NAME
   5 ----
   6 perf-trace - Read perf.data (created by perf record) and display trace output
   7
   8 SYNOPSIS
   9 --------
  10 [verse]
  11 'perf trace' {record <script> | report <script> [args] }
  12
  13 DESCRIPTION
  14 -----------
  15 This command reads the input file and displays the trace recorded.
  16
  17 There are several variants of perf trace:
  18
  19   'perf trace' to see a detailed trace of the workload that was
  20   recorded.
  21
  22   'perf trace record <script>' to record the events required for 'perf
  23   trace report'.  <script> is the name displayed in the output of
  24   'perf trace --list' i.e. the actual script name minus any language
  25   extension.
  26
  27   'perf trace report <script>' to run and display the results of
  28   <script>.  <script> is the name displayed in the output of 'perf
  29   trace --list' i.e. the actual script name minus any language
  30   extension.  The perf.data output from a previous run of 'perf trace
  31   record <script>' is used and should be present for this command to
  32   succeed.
  33
  34 OPTIONS
  35 -------
  36 -D::
  37 --dump-raw-trace=::
  38         Display verbose dump of the trace data.
  39
  40 -L::
  41 --Latency=::
  42         Show latency attributes (irqs/preemption disabled, etc).
  43
  44 -l::
  45 --list=::
  46         Display a list of available trace scripts.
  47
  48 -s ['lang']::
  49 --script=::
  50         Process trace data with the given script ([lang]:script[.ext]).
  51         If the string 'lang' is specified in place of a script name, a
  52         list of supported languages will be displayed instead.
  53
  54 -g::
  55 --gen-script=::
  56         Generate perf-trace.[ext] starter script for given language,
  57         using current perf.data.
  58
  59 SEE ALSO
  60 --------
  61 linkperf:perf-record[1], linkperf:perf-trace-perl[1]