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

[Mark Knecht]

Kjetil Svalastog Matheussen wrote:
> 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?
> 
> 

I'd like to ask if there is a set of written instructions for building 
this kernel? I'd like to try it out.