Subject: Re: wiki page (was: Re: [linux-audio-user] dipping toes in 2.6 waters)
From: Florian Schmidt (mista.tapas_AT_gmx.net)
Date: Wed Aug 11 2004 - 00:07:12 EEST
On Tue, 10 Aug 2004 16:36:47 -0400
Lee Revell <rlrevell_AT_joe-job.com> wrote:
> However, if it happens the other way, and the disk controller
> interrupts the soundcard, this can be a problem, because at the lowest
> latencies we have 666 usecs between soundcard interrupts. If the disk
> controller interrupts the soundcard and runs for a significant
> fraction of 666 usecs, then it's possible that by the time control is
> returned to the soundcard interrupt handler, we have already missed
> the next interrupt.
>
> I believe this is what was happening with the earler voluntary
> preemption patches (-L2?), where xruns occurred with the default
> max_sectors_kb of 1024, but went away when this was lowered to 256.
Ok, thanks for the clarification. Now i can start trying to puzzle all
this info together into a nice short clear text on the wiki page. I'm
not so good at writing texts, so it might take a while :)
Flo
-- Palimm Palimm! http://affenbande.org/~tapas/
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