Re: [patch] voluntary-preempt-2.6.8-rc2-L2, preemptable hardirqs

From: Ingo Molnar
Date: Thu Jul 29 2004 - 13:16:56 EST



* Lee Revell <rlrevell@xxxxxxxxxxx> wrote:

> Here are some more results. I am up to 56 million interrupts and I
> have yet to trigger a latency higher than 46 usecs. It looks like
> this is a hard upper limit.

nice - what is the average (and minimum?) latency reported by jackd?
I'd say 46 usecs on a 600 MHz box is quite close to what it takes to
handle an interrupt and schedule to the cache-cold jackd task. It should
definitely be well below the latency required for jackd to do its job
reliably.

Ingo
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