[ardour-users] OT - 2.6.11 kernels for audio

[Fernando Lopez-Lezcano]

On Mon, 2005-04-11 at 13:03, Mark Knecht wrote:
> On Apr 11, 2005 12:56 PM, Rob Fell <robin.fell at ntlworld.com> wrote:
> > Mark Knecht wrote:
> > >    Anyone doing 2.6.11 yet? What's your experience? How did you patch
> > > to make Ardour work well.
> > 
> > I'm currently running 2.6.11-rc4-RT-V0.7.39-02.  Stock sources plus
> > Ingos RT patches.
> 
> That sounds about like what I'm looking for. My current kerenl before
> trying to jump up to 2.6.11 is 2.6.9-rc2-mm4-VP-S7 and then
> variations. (-lsm, noACPI, etc.)  I did all of this last October and
> then promptly forgot what's what. Every time this is a learning
> experience.
> 
> Can you point me toward Ingo's stuff. I'm trying to Google for it but
> I seem to be buried in nothing but lkml emails...

  http://people.redhat.com/~mingo/realtime-preempt/
needs 2.6.12-rc2
(currently building it :-)
-- Fernando

> > Since I'm using the ZLM on my delta-1010 I don't run particularly low
> > latencies - I have been able to get reliable 5ms(ish) on my now ageing
> > 1.3GHz Duron.  Apparently there is an issue with my kernel between ext3
> > and low-lat performance - which explains why I'm not able to go below
> > 5ms(ish) reliably.
> > 
> > If I were doing it again I'd either (a) check-out the Gentoo kernels, or
> > (b) pick a kernel to match Ingos latest RT patchset.
> 
> Yeah, I should probably pay more attention to possibly the ck kernel?
> Any comments from your perspective on which kernel might be the best
> for running low latency audio as a normal user?
> 
> Thanks much,
> Mark