I do have here one box at least (intel quad q8200) with a nvidia 9600 working just fine on a 2.6.33.7-rt29 kernel. The nvidia driver versoin is latest official 256.53, blob compiled to fit (some trivial patching needed to build cleanly for kernel-rt). As they say, YMMV :)
OTOH, last time I've checked, the regular PREEMPT kernel does not implement any of the IRQ service threading that PREEMPT_RT does, being one of its corner stones. In fact the main job of the rtirq script is just dealing with those separate IRQ thread priorities and scheduling schemes. Again, rtirq is a PREEMPT_RT kernel only thingie no matter which version do you pick.
I do have here one box at least (intel quad q8200) with a nvidia 9600 working just fine on a 2.6.33.7-rt29 kernel. The nvidia driver versoin is latest official 256.53, blob compiled to fit (some trivial patching needed to build cleanly for kernel-rt). As they say, YMMV :)
OTOH, last time I've checked, the regular PREEMPT kernel does not implement any of the IRQ service threading that PREEMPT_RT does, being one of its corner stones. In fact the main job of the rtirq script is just dealing with those separate IRQ thread priorities and scheduling schemes. Again, rtirq is a PREEMPT_RT kernel only thingie no matter which version do you pick.
Cheers