[linux-audio-user] Ingo's RT patch: please tell this newbie the best jack settings
rlrevell at joe-job.com
Fri Nov 11 14:17:41 EST 2005
On Fri, 2005-11-11 at 12:22 +0100, Florian Schmidt wrote:
> On Thu, 10 Nov 2005 20:10:20 -0500
> Lee Revell <rlrevell at joe-job.com> 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
> Oh well, not for everyone. If you want to be sure and have no xrun
> whatsoever a -rt kernel is definetly the better choice imho (don't have
> data to back that up though)
I do have some data to back this up, I ran about 100 million samples
with 2.6.14 and the biggest latency I saw was ~0.6 ms. For the buffer
sizes he wants to use 2.6.14 will work fine. Of course you won't be
able to sustain quite as high a DSP load but given the problems people
are having with the -rt kernel on x64 it's worth investigating.
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