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cubelinux-kernel/Documentation/tools/rtla/rtla-osnoise.rst
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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===============
rtla-osnoise
===============
------------------------------------------------------------------
Measure the operating system noise
------------------------------------------------------------------
:Manual section: 1
SYNOPSIS
========
**rtla osnoise** [*MODE*] ...
DESCRIPTION
===========
.. include:: common_osnoise_description.txt
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.txt