[linux-audio-user] Problems appling realtime preempt patch to 2.6.12 (general)

Eric Dantan Rzewnicki rzewnickie at rfa.org
Wed Jul 13 11:10:41 EDT 2005


On Tue, Jul 12, 2005 at 06:42:29PM +0200, Christoph Eckert wrote:
> > I've just joined the list and it's pretty interesting.
> > Can someone tell me something about the differences between
> > the preempt patch from Ingo and the "Realtime Linux
> > Security Module"? I currently use the latter one and I'm
> > quite satisfied as jack works really fast. Perhaps one
> > should try this way instead of the vanilla kernel patch.
> > There have to be pros and cons I'm interested in. Can
> > someone point them out?
> same for me, but RT-LSM has been dropped by Andrew Morton in 
> the 2.6.12-mm kernels, so we should start using preemt.
> Unfortunately, even for me RT-LSM gives much better results 
> than preemption. And even with the RT-LSM I get "only" 
> 16msecs latencies.

Christoph, is there any reason you wouldn't use both preemption and
rt-lsm at the same time?

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