Re: Pin-pointing the root of unusual application latencies

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* John Sigler <[email protected]> wrote:

> >With a pair of the following in the middle:
> >
> >softirq--4     0....  670us : call_rcu (rt_run_flush)
> >softirq--4     0D..1  670us : __rcu_advance_callbacks (call_rcu)

> Any idea what went wrong in the above function trace? Why is the 
> kernel spinning in circles that way?

does your test-app have higher priority than softirq--4 ?

	Ingo
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