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common_osnoise_description.txt

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linux-6.19.14/Documentation/tools/rtla/common_osnoise_description.txt PLAIN TEXT
1The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
2*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
3time in a loop while with preemption, softirq and IRQs enabled, thus
4allowing all the sources of operating system noise during its execution.
5The *osnoise*'s tracer threads take note of the delta between each time
6read, along with an interference counter of all sources of interference.
7At the end of each period, the *osnoise* tracer displays a summary of
8the results.
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