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perf-trace

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)