[linux-audio-user] Ingo's RT patch: please tell this newbie the best jack settings

[Lee Revell]

On Mon, 2005-11-14 at 17:15 -0800, thewade wrote:
> > On Thu, 2005-11-10 at 17:05 -0800, thewade wrote:
> > >/ I am curious how to get PD running on my machine 
> /> >/ processing complex patches but with a latency of 5.33 msec (128 frame 
> /> >/ buffer size I think) or less. I would even settle fo 10msec (256) with 
> /> >/ no XRUNS.
> /> >/ 
> /> 
> > You don't need the -rt kernel for that, the standard kernel will work.
> > 
> > Lee
> 
> I am using kernel 2.6.13-1.1526_FC4 and the Hammerfall HDSP multiface on an AMD64 3400+ laptop in i386 mode, and the best
> I can do with no XRUNS in jack is 42.7msec latency (48kHz at 1024 frames).
> This is not becasue of PD. If I lower the framecount with only jackd running and switch windows I get XRUNS.
> 
> This is why I want to use the rt5 kernel.
> 
> How did you get such low latency with the standard kernel?
> Is there a howto page somewhere?

2.6.13 is old, the current kernel is 2.6.14 - try this first.

Lee