Re: real-time threaded IO with low latency (audio)

Ove Ewerlid (Ove.Ewerlid@syscon.uu.se)
Fri, 23 Jul 1999 14:49:04 +0200

Paul Barton-Davis wrote:
>
> I consider the idea of a single-processor system replacing, say, a
> dedicated Lexicon rack unit or a Quadraverb 20, to be pretty
> silly. However, using a dual processor system, and binding a DSP-like
> thread to one of the processors has a lot of promise, and I'm pretty
> close to doing this once i get Tim's pset patches installed.

Will this DPS-like thread allow you to turn of such things as IO-apic
interrupts and reroute all interrupts to the processors that is not
running the real time thread?

I have _hacks_ that do this and it works quite nicely but it would be
nice
to find som more general API for this type of functionality. I do not
have
the time to do that.

If your goal is at the "5 ms level" then interrupts may not matter to
you.
Is this the case?

Ove

-- 
Ove Ewerlid
Ove.Ewerlid@syscon.uu.se or Ove.Ewerlid@signal.uu.se
Phone: +46 70 666 23 63, Fax: +46 18 503 611, +46 18 555 096


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