[linux-audio-user] Realtime not working on Debian testing... why?

Lee Revell rlrevell at joe-job.com
Tue Nov 14 23:12:15 EST 2006


On Wed, 2006-11-15 at 03:54 +0100, David wrote:
> On Tue, 14 Nov 2006 18:11:14 -0500
> Lee Revell <rlrevell at joe-job.com> wrote:
> 
> > On Tue, 2006-11-14 at 15:56 -0700, Glenn Greenfield wrote:
> > > Yes - a kernel configured for realtime preemtion.
> > > 
> > > $ zcat /proc/config.gz |grep PREEMPT_RT
> > > CONFIG_PREEMPT_RT=y 
> > 
> > Actually no.  This is a common misconception.
> > 
> > The point of realtime preemption is to improve realtime performance.
> > The point of PAM and RT limits and the realtime LSM is to allow
> > non-root users to run realtime applications.
> > 
> > The two have nothing to do with each other.
> 
> But there would be no point in using the realtime LSM or the RT rlimit
> on a non RT kernel. True ?

No, not true.  Normal kernels can run realtime applications too.  They
just don't perform as well.

Lee




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