This is not a very good solution, since I think it causes the JACK to lock up occasionally, but so far I have no clue why pd is having this problem. It appears to only happen with JACK (ALSA runs fine), and I do not have similar xruns with other programs running at the same time (ex. Ardour. Also, qjackctl shows no xruns). I get xruns about once a second, then I do the command "chrt -p 60 [whatever pd's pid is]" and all xruns go away.
Anyone know where to look for a solution? It is no good having the audio dropped or, worse, pd crashing occasionally. regards, rich On Nov 19, 2007 8:34 PM, Rich E <[EMAIL PROTECTED]> wrote: > After setting up ubuntustudio (7.04) with a real-time kernel ( > 2.6.20-16-realtime), I was experiencing DIO errors every few seconds. > Exploring this taught me alot about how to set priorities on a real-time > kernel, mainly with the command 'chrt'. However, I don't think it is meant > to be used directly on an application, since there might be parts of the > application that are not supposed to run in real-time at a high priority. > > Nonetheless, running: > [EMAIL PROTECTED]:/etc/sysconfig$ pidof pd > 12079 > [EMAIL PROTECTED]:/etc/sysconfig$ chrt -p 60 12079 > > sets pd running as: > [EMAIL PROTECTED]:/etc/sysconfig$ chrt -p 12079 > pid 12079's current scheduling policy: SCHED_RR > pid 12079's current scheduling priority: 60 > > and the xruns go away. I don't know too much about the different threads > pd is running on, but I was under the impression that pd is supposed to > start in real-time with a high priority. Yet, due to the apperant changes > from chrt, I would think that it was not running in real-time. I've tried > this on versions 0.40-3 and 0.41-7, and real-time scheduling is not > specifically turned off in the pd start-up settings. > > Any thoughts? > > regards, > rich >
_______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list