forked from Minki/linux
496082df01
Man page for rtla osnoise command. Link: https://lkml.kernel.org/r/304747c602e46f6396e3bb75dfdcb42ae3656dca.1639158831.git.bristot@kernel.org Cc: Tao Zhou <tao.zhou@linux.dev> Cc: Ingo Molnar <mingo@redhat.com> Cc: Tom Zanussi <zanussi@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Clark Williams <williams@redhat.com> Cc: John Kacur <jkacur@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Bristot de Oliveira <bristot@kernel.org> Cc: linux-rt-users@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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9 lines
518 B
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The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
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*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
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time in a loop while with preemption, softirq and IRQs enabled, thus
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allowing all the sources of operating systme noise during its execution.
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The *osnoise*'s tracer threads take note of the delta between each time
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read, along with an interference counter of all sources of interference.
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At the end of each period, the *osnoise* tracer displays a summary of
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the results.
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