Well, you should definately run PD with -rt. If you're calling GrIPD with an "open" message, the GrIPD GUI will run with priority 0 (SCHED_OTHER) schedualing (as opposed to PD's 96), so that helps a lot. Are you getting DIO errors? I've found in some of the later versions of PD that I sometimes get a crackling in audio with no DIO errors and low CPU usage, and I'm not sure why. Can you run other reasonably low utilization apps simultaneously with your patch without problem or is it just GrIPD? At any rate, there are a few things you might try: You can increase the PD GrIPD object's poll times by sending "poll_send" and "poll_receive" messages with an integer argument specifying the poll time in milliseconds (see gripd.pd). You can also try changing the poll time of the GrIPD GUI: in gripdMain.py, change line 89 where it says
SOCKETTIMERTIME = 5
to some larger integer (milliseconds). I supposed I could add this as a feature. Also, I'm not sure, but using a non-bitmap GTK theme might help. I've also found, from purely a voodoo standpoint, that opening the GrIPD GUI before I start audio seems to help.
I hope this helps. Let me know how things go.
Joe
| | Joseph A. Sarlo | | jsarlo@mambo.peabody.jhu.edu |______________________________
On Tue, 4 Sep 2001, Michal Seta wrote:
On 9/4/01 10:23 AM, "Bill Sack" wsack@acsu.buffalo.edu wrote:
hi,
have you tried running pd suid root and using the -rt flag? i was having similar problems until i did so. there was a short thread on the list a while ago about suid root and how-to.
well, somehow it doesn't work for me (suid trick. I get a message saying that I'm not running as root. I did chmod trick as root). But I did run it as root with -rt switch (in fact I forgot to mention it in my previous message as I was anticipating this suggestion). I would like to use a cute gui :|.
BTW, did you guys know that the search utility on the mailing list site doesn't work?
BTW(2), is pd and iemlib in sync now?
thanks.
./MiS