58 lines
1.4 KiB
ReStructuredText
58 lines
1.4 KiB
ReStructuredText
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================
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rtla-timerlat
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================
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-------------------------------------------
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Measures the operating system timer latency
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-------------------------------------------
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:Manual section: 1
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SYNOPSIS
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========
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**rtla timerlat** [*MODE*] ...
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DESCRIPTION
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===========
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.. include:: common_timerlat_description.rst
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The *timerlat* tracer outputs information in two ways. It periodically
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prints the timer latency at the timer *IRQ* handler and the *Thread* handler.
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It also provides information for each noise via the **osnoise:** tracepoints.
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The **rtla timerlat top** mode displays a summary of the periodic output
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from the *timerlat* tracer. The **rtla hist hist** mode displays a histogram
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of each tracer event occurrence. For further details, please refer to the
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respective man page.
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MODES
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=====
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**top**
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Prints the summary from *timerlat* tracer.
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**hist**
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Prints a histogram of timerlat samples.
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If no *MODE* is given, the top mode is called, passing the arguments.
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OPTIONS
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=======
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**-h**, **--help**
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Display the help text.
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For other options, see the man page for the corresponding mode.
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SEE ALSO
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========
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**rtla-timerlat-top**\(1), **rtla-timerlat-hist**\(1)
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*timerlat* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/timerlat-tracer.html>
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AUTHOR
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======
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Written by Daniel Bristot de Oliveira <bristot@kernel.org>
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.. include:: common_appendix.rst
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