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NAME | SYNOPSIS | DESCRIPTION | COMMON OPTIONS | REPORT OPTIONS | INFO OPTIONS | SEE ALSO | COLOPHON |
PERF-LOCK(1) perf Manual PERF-LOCK(1)
perf-lock - Analyze lock events
perf lock {record|report|script|info}
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 report' reports statistical data.
'perf lock script' shows raw lock events.
'perf lock info' shows metadata like threads or addresses
of lock instances.
-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.
-f, --force
Don’t complan, do it.
-k, --key=<value>
Sorting key. Possible values: acquired (default), contended,
avg_wait, wait_total, wait_max, wait_min.
-t, --threads
dump thread list in perf.data
-m, --map
dump map of lock instances (address:name table)
perf(1)
This page is part of the perf (Performance analysis tools for Linux
(in Linux source tree)) project. Information about the project can
be found at ⟨https://perf.wiki.kernel.org/index.php/Main_Page⟩. If
you have a bug report for this manual page, send it to
linux-kernel@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
was found in the repository was 2020-08-12.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
perf 2017-11-16 PERF-LOCK(1)