swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
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Tip revision: 62aa2b537c6f5957afd98e29f96897419ed5ebab authored by Linus Torvalds on 31 January 2012, 21:31:54 UTC
Linux 3.3-rc2
Tip revision: 62aa2b5
perf-lock.txt
perf-lock(1)
============

NAME
----
perf-lock - Analyze lock events

SYNOPSIS
--------
[verse]
'perf lock' {record|report|trace}

DESCRIPTION
-----------
You can analyze various lock behaviours
and statistics with this 'perf lock' command.

  '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.

  'perf lock trace' shows raw lock events.

  'perf lock report' reports statistical data.

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,
        wait_total, wait_max, wait_min.

SEE ALSO
--------
linkperf:perf[1]
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