Kjetil Matheussen <k.s.matheussen@xxxxxxxxx>: > > Luka Prin?i? / Nova deViator: > > > > > Renoise seems to be running some threads with FIFO scheduler with a > > priority that is _below_ that of JACK and firewire driver (correct > > right?), but ALSO some threads using Round Robin scheduler with VERY > > HIGH RT priority of 95. my question is if this is a possible cause > > for glitches and XRUNS? > > > This thread could be a watchdog thread, in which case a priority of 95 > should be unproblematic. > > The glitches and XRUNS you see are probably due to other reasons > than thread priorities. Renoise is probably doing some time consuming > things in the jack thread, or is the victim of priority inversion, or > waiting for a non-realtime thread doing some work. thanks, this is interesting. i'm slowly coming to conclusion that nothing really helps regarding Renoise when it communicates with other programs. as standalone there are no problems, no (serious) glitches. but when sending MIDI to SuperCollider which converts that to OSC and sends that to Processing it just stutters intolerably from time to time. happened during live performance about three times two days ago. :(. it's really a shame since I love it and will continue using it for composition, but, live situation - composing audio-visuals - seems like no go. if anyone's curious, I have tried (this was actually primary setup) Renoise on laptop, sending MIDI to SuperCollider sending OSC over the network to video machine with Processing runnning. very similar situation. glitches. few, but still too many. in very near future I plan to do some stress tests with only SuperCollider doing audio-intensive work and triggering Processing at the same time. we'll see how that goes if I take Renoise out of equation. in the meantime, there's also a little thread on Renoise forums: http://forum.renoise.com/index.php/topic/47767-linux-priority-too-high/ ha, also discovered there's a separate tuning list http://lists.linuxaudio.org/listinfo/linux-audio-tuning best, Luka
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