[PlanetCCRMA] jackd xruns problem: solved?

[Fernando Pablo Lopez-Lezcano]

On Fri, 2004-08-13 at 13:05, Arthur Sosa wrote:
> I was not able to play with jack with 2.6.5 ccrma kernel,
> neither with 2.6.7-1.437.1.ll.rhfc2.ccrma or a 2.6.7 kernel
> compiled with Con Kolivas' patches.
> 
> I tried with different parameters. For example with
> # jackd --realtime -Rv -d alsa -p 128 -n 3 -r 44100
> 
> I got everytime a lot of xruns (many per second)
> 
> 	**** alsa_pcm: xrun of at least 0.075 msecs
> 	**** alsa_pcm: xrun of at least 0.077 msecs
> 	. . .
> 
> (I had only Firefox and Konsole opened)
> 
> Then I tried to compile a 2.6.8-rc4 with CK2 and.. no more xruns!
> (with # jackd --realtime -Rv -d alsa -p 128 -n 3 -r 44100
>  and same applications running).
> 
> I must admit, I didn'to do hard testing by now, but
> I think it could be encouraging!

There has been a lot of progress in the last few weeks. I'm currently
running 2.6.8rc4 plus Ingo Molnar's volutary scheduling O5 and it is
looking very very good. The gurus are hard at work tracking hard stuff
that deals with mlockall...[*]

-- Fernando

[*] ... so no luck yet with getting a proper patch for the radeon video
cards :-(