[ardour-dev] Re: Beta 28 from CVS mtc??

David Mulcahy eseol at tiscali.co.uk
Tue Mar 29 05:33:44 PST 2005

I might be out of my depth a bit here but just a suggestion.  I remember 
reading that you have to prioritise the irq of your soundcard to get low 
latency (with some settings eg preempt desktop or realtime) on a 2.6 kernel.  
Now I dont use CCRMA so i dont know if that is setup to work like that out 
the box.  If it is setup for that then it might not set the RTC irq (you do 
need this for MTC sync dont you?) to a higher priority.  Just a suggestion 
maybe someone may be able to clarify that.


On Tuesday 29 March 2005 10:20, Per Sigmond wrote:
> Quoting Geoff Beasley <songshop at bizmedia.com.au>:
> >  Hey,
> >  I compiled Ardour Beta 28 from CVS this morning hoping to test out
> > Per's MTC patch. I applied the patches manually last week on 2 machines
> > both running Slackware 10, Ardour beta 28, Alsa 1.0.8 and had incredible
> > results! Then today I tried the Ardour CVS tarball, running Fedora Core 3
> > / CCRMA, jack 99.54, Alsa 1.0.8 and had mixed results.
> For the record, I have had bad results with regards to timing/latency using
> the CCRMA 2.6 kernels for FC3. Actually so bad that I reverted to FC1 and
> 2.4 :-(.
> Anyone else had problems with these kernels? Could be that they don't like
> my dual-P3 hardware...
> Regards,
> Per.
> --
> Per Sigmond
> Gjert Sorensensvei 5
> 4879 Grimstad
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