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lastdragon
2026-09-06 12:53:21 -06:00
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linux-7.2.3/Documentation/tools/rtla/common_osnoise_description.txt
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The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
time in a loop while with preemption, softirq and IRQs enabled, thus
allowing all the sources of operating system noise during its execution.
The *osnoise*'s tracer threads take note of the delta between each time
read, along with an interference counter of all sources of interference.
At the end of each period, the *osnoise* tracer displays a summary of
the results.