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

Ingo Molnar
2004-07-29T18:12:17Z

* Lee Revell <rlrevell@joe-job.com> 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