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57 lines
1.4 KiB
57 lines
1.4 KiB
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rtla-timerlat |
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Measures the operating system timer latency |
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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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**-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 <[email protected]> |
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.. include:: common_appendix.rst
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