2010-02-04 15:08:15 +08:00
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perf-lock(1)
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============
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NAME
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----
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perf-lock - Analyze lock events
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SYNOPSIS
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--------
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[verse]
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2012-01-29 16:55:56 +08:00
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'perf lock' {record|report|script|info}
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2010-02-04 15:08:15 +08:00
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DESCRIPTION
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-----------
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You can analyze various lock behaviours
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and statistics with this 'perf lock' command.
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'perf lock record <command>' records lock events
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between start and end <command>. And this command
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produces the file "perf.data" which contains tracing
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results of lock events.
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'perf lock report' reports statistical data.
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2012-01-29 16:55:56 +08:00
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'perf lock script' shows raw lock events.
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'perf lock info' shows metadata like threads or addresses
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of lock instances.
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2011-02-23 04:53:12 +08:00
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COMMON OPTIONS
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--------------
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2010-12-01 09:57:14 +08:00
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-i::
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--input=<file>::
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2011-12-07 17:02:54 +08:00
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Input file name. (default: perf.data unless stdin is a fifo)
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2010-12-01 09:57:14 +08:00
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-v::
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--verbose::
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Be more verbose (show symbol address, etc).
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-D::
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--dump-raw-trace::
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Dump raw trace in ASCII.
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2017-11-16 21:06:49 +08:00
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-f::
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--force::
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Don't complan, do it.
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2011-02-23 04:53:12 +08:00
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REPORT OPTIONS
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--------------
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-k::
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--key=<value>::
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Sorting key. Possible values: acquired (default), contended,
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2013-09-09 10:19:19 +08:00
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avg_wait, wait_total, wait_max, wait_min.
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2011-02-23 04:53:12 +08:00
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2012-01-29 16:55:56 +08:00
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INFO OPTIONS
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------------
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-t::
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--threads::
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dump thread list in perf.data
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-m::
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--map::
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dump map of lock instances (address:name table)
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2010-02-04 15:08:15 +08:00
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SEE ALSO
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--------
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linkperf:perf[1]
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