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author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-04-01 17:12:31 +0200 |
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committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-04-01 17:12:31 +0200 |
commit | de4fb176622d54a82ea3ceb7362392aaf5ff0b5a (patch) | |
tree | 8b510763d14d89b97cd719e79834c84e095932d7 /Documentation/tools/rtla/rtla-osnoise.rst | |
parent | ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame() (diff) | |
parent | ARM: 9189/1: decompressor: fix unneeded rebuilds of library objects (diff) | |
download | linux-de4fb176622d54a82ea3ceb7362392aaf5ff0b5a.tar.xz linux-de4fb176622d54a82ea3ceb7362392aaf5ff0b5a.zip |
Merge branches 'fixes' and 'misc' into for-linus
Diffstat (limited to 'Documentation/tools/rtla/rtla-osnoise.rst')
-rw-r--r-- | Documentation/tools/rtla/rtla-osnoise.rst | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/tools/rtla/rtla-osnoise.rst b/Documentation/tools/rtla/rtla-osnoise.rst new file mode 100644 index 000000000000..c129b206ce34 --- /dev/null +++ b/Documentation/tools/rtla/rtla-osnoise.rst @@ -0,0 +1,59 @@ +=============== +rtla-osnoise +=============== +------------------------------------------------------------------ +Measure the operating system noise +------------------------------------------------------------------ + +:Manual section: 1 + +SYNOPSIS +======== +**rtla osnoise** [*MODE*] ... + +DESCRIPTION +=========== + +.. include:: common_osnoise_description.rst + +The *osnoise* tracer outputs information in two ways. It periodically prints +a summary of the noise of the operating system, including the counters of +the occurrence of the source of interference. It also provides information +for each noise via the **osnoise:** tracepoints. The **rtla osnoise top** +mode displays information about the periodic summary from the *osnoise* tracer. +The **rtla osnoise hist** mode displays information about the noise using +the **osnoise:** tracepoints. For further details, please refer to the +respective man page. + +MODES +===== +**top** + + Prints the summary from osnoise tracer. + +**hist** + + Prints a histogram of osnoise samples. + +If no MODE is given, the top mode is called, passing the arguments. + +OPTIONS +======= + +**-h**, **--help** + + Display the help text. + +For other options, see the man page for the corresponding mode. + +SEE ALSO +======== +**rtla-osnoise-top**\(1), **rtla-osnoise-hist**\(1) + +Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html> + +AUTHOR +====== +Written by Daniel Bristot de Oliveira <bristot@kernel.org> + +.. include:: common_appendix.rst |