Roger Larsson <[EMAIL PROTECTED]> wrote: > They are not bad either... (sub 10 ms) I think it is bad. I want the <3 ms :-) I will be added latency in the processing (fft, ifft) and it all adds up.
> > Something is definitely very wrong here. I am running kernel > > 2.4.13 patched with preempt-kernel-rml-2.4.13-2.patch > And you have enabled it in .config? (checking the obvious...) Yeah, I triple checked the obvious (also: did I run lilo, did lilo use the right vmlinuz) > But wait... an AMD.... > They have some 3DNow specific kernel optimizations that causes trouble - > they need to disable preemtion (uses fp registers...) Hmm.. Does anybody have more information about this? Could I disable these optimizations compiling for another CPU (386, or maybe even Pentium Classic?) I suppose the performance penalty that would give would be acceptable. Latency is more important. Would Andrew Morton's LL patches also be affected by this? Maarten
