Thanks to all who participated. (Ralf Holger, Hermann)
Huge success!
I havent even implemented all the changes that was suggested here, but I
now run mixbus at 64 samples @ 44100Hz with 1.5ms latency.
Awesome beyond belief !
No xruns I could find for an hour now pushing it hard, and mixbus little
red indicator stays gray, I now have no sporadic pops and there is NO
audible latency.
I also run a couple of plugins in mixbus, no trouble at all.
I still have a lot to read up to implement the remainder of what you
suggested which should improve things further.
Please let me know to which log xruns are logged, as I want to make sure
I catch even inaudible ones if they exist.
Latency free monitoring at last it seems and realtime playback sound.
Thanks