[linux-audio-dev] Real time delay tutorials?

[Iain Duncan]

> In realtime critical applications people prefer RTLinux or the RTAI extension
> to the kernel for periods and scheduling latencies in the low  microseconds 
> range  (<30 microseconds worst case scheduling latency on recent x86 
> hardware).

I've often wondered about that. Why are those sorts of kernels 
inappropriate for audio? ( Just out of curiousity. )

Thanks
Iain