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perf-trace
Langue: en
Version: 09/20/2010 (ubuntu - 24/10/10)
Section: 1 (Commandes utilisateur)
NAME
perf-trace - Read perf.data (created by perf record) and display trace outputSYNOPSIS
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:
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'perf trace' to see a detailed trace of the workload that was recorded.
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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:
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'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.
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'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.
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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)
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