11 lines
561 B
ReStructuredText
11 lines
561 B
ReStructuredText
The **rtla timerlat** tool is an interface for the *timerlat* tracer. The
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*timerlat* tracer dispatches a kernel thread per-cpu. These threads
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set a periodic timer to wake themselves up and go back to sleep. After
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the wakeup, they collect and generate useful information for the
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debugging of operating system timer latency.
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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*
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handler. It also enable the trace of the most relevant information via
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**osnoise:** tracepoints.
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