NAME
perf-trace - Read perf.data (created by perf record) and display trace
output
SYNOPSIS
perf trace {record <script> | report <script> [args] }
DESCRIPTION
This command reads the input file and displays the trace recorded.
There are several variants of perf trace:
'perf trace' to see a detailed trace of the workload that was
recorded.
You can also run a set of pre-canned scripts that aggregate and
summarize the raw trace data in various ways (the list of scripts is
available via 'perf trace -l'). The following variants allow you to
record and run those scripts:
'perf trace record <script>' to record the events required for 'perf
trace report'. <script> is the name displayed in the output of
'perf trace --list' i.e. the actual script name minus any language
extension.
'perf trace report <script>' to run and display the results of
<script>. <script> is the name displayed in the output of 'perf
trace --list' i.e. the actual script name minus any language
extension. The perf.data output from a previous run of 'perf trace
record <script>' is used and should be present for this command to
succeed.
See the 'SEE ALSO' section for links to language-specific
information on how to write and run your own trace scripts.
OPTIONS
-D, --dump-raw-trace=
Display verbose dump of the trace data.
-L, --Latency=
Show latency attributes (irqs/preemption disabled, etc).
-l, --list=
Display a list of available trace scripts.
-s [lang], --script=
Process trace data with the given script ([lang]:script[.ext]). If
the string lang is specified in place of a script name, a list of
supported languages will be displayed instead.
-g, --gen-script=
Generate perf-trace.[ext] starter script for given language, using
current perf.data.
SEE ALSO
perf-record(1), perf-trace-perl(1), perf-trace-python(1)