[PD] knacks at low latency

[IOhannes m zmoelnig]

hi all!

what is the lowest possible latency that anyone got under linux ?
with alsa-0.9.0b4 + kernel-2.4.3(+ low latency patch by a.morton) we are
only coming down to
982 samples (which is almost 22.2 ms under 44.1).
this works for "-frags 6"
decreasing the fragsize even more, will produce knacks, unless you
constantly move the mouse inside the pd window (seems like a tool for
live-gigs...)

what exactly does the "-fragsize <n>" option mean ? anytime we changed
this parameter, it behaved the same (and very badly indeed), meaning
4210 samples of latency and knacksing all the time, no matter which
fragsize we choose.

mfg.sd.asdf
IOhannes