perf-lock (1)
Leading comments
Title: perf-lock
Author: [FIXME: author] [see http://docbook.sf.net/el/author]
Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
Date: 09/12/2017
Manual: perf Manual
Source: perf
Language: English
NAME
perf-lock - Analyze lock eventsSYNOPSIS
perf lock {record|report|script|info}
DESCRIPTION
You can analyze various lock behaviours and statistics with this perf lock command.
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'perf lock record <command>' records lock events between start and end <command>. And this command produces the file "perf.data" which contains tracing results of lock events.
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'perf lock report' reports statistical data.
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'perf lock script' shows raw lock events.
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'perf lock info' shows metadata like threads or addresses of lock instances.
COMMON OPTIONS
-i, --input=<file>
- Input file name. (default: perf.data unless stdin is a fifo)
-v, --verbose
- Be more verbose (show symbol address, etc).
-D, --dump-raw-trace
- Dump raw trace in ASCII.
REPORT OPTIONS
-k, --key=<value>
- Sorting key. Possible values: acquired (default), contended, avg_wait, wait_total, wait_max, wait_min.
INFO OPTIONS
-t, --threads
- dump thread list in perf.data
-m, --map
- dump map of lock instances (address:name table)