[PlanetCCRMA] [Low latency patches] Voluntary Preempt vs. Staircase+mappedwatermark

[Kjetil Svalastog Matheussen]

On Thu, 2 Sep 2004, Arthur Sosa wrote:

> 
> I thought it would not be possible to run jack on my system like this:
> 
> # jackd -Rv -d alsa -p 128 -n 3 -r 44100
> 
> But I just tried Con Kolivas' patches (ck5 with kernel 2.8.6.1)
> ( adding the _important_ latest little patch
>    http://ck.kolivas.org/patches/2.6/2.6.8.1/2.6.8.1-ckdev/lenient_uw.diff )
> 
> and I see _no more xruns_ even under heavy loads!!!  It's incredible!
> 
> 
> Fernando, I tried the new kernels with voluntary preemption, but they
> perform _very_ bad . I must learn the way how to find out the reasons.
> 

I just have to ask... When using the voluntary preemption patch, did 
you turn off interrupt threading for the soundcard?


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