Hello, first mail here.
I am working on a video mixer with effects using pdp and pidip. It consists of four parts each running a separate instance of pdextended 0.42.5 each on one core of my quadcore laptop Linux system. When one of the cores, running several video effects on a pdp stream, maxes out to 100%, I totally lose realtime update of MIDI messages: when I turn a knob on my Vestax VCI-100 MIDI controller, the changes only filter through after sometimes more than 10 seconds! I am using the Vestax connected to each instance of PD through ALSA MIDI.
I really hope there is some way of keeping a snappy MIDI response even on full processor load: to me, the realtime flow video stream is only second to constant MIDI message updates...
.gert.