[PD] os x realtime not under root.

[tigital]

On Monday, September 15, 2003, at 07:25  AM, Amos Elmaliah wrote:

> hi i just starting to use pd, on a osx machine.
> - i compiled it myself. my question: is it necessary to sudo pd to get 
> real time in osx?

...well, I guess you've already seen the other posts, and I just wanted 
to come down on the side of "realtime isn't very helpful on 
OSX"...which brings up a question or two that I had posted, oh, last 
week, but which were quietly unanswered:

- does pd.watchdog only get invoked if using the "-rt" flag?  I don't 
seem to notice it otherwise...and lately it doesn't print anything but 
a carriage return:  is this correct?

...also, I would strongly recommend removing the schedule priority 
setting stuff, especially if using GEM, because it allows pd to take 
over the machine, thus necessitating a reboot!  This may be sparked by 
the extremely inefficient implementation of TCL/TK on OSX, as it seems 
to happen when changing parameters "on the fly" via number boxes or the 
like...again to repeat a previous post:

"searching through the code, I found that the param.sched_priority 
"fix" has worked it's way into s_inter.c:833:848...if I remember 
correctly, this was a "fix" for audio glitches?  The problem with using 
it and GEM is that it makes pd a higher priority than the window 
manager, and so it's very easy to get locked out, forcing a manual 
reboot!  If audio people really need this (I thought the audio glitch 
was fixed elsewhere, too?), could we make a compile flag to disable 
this?  Also would be a good idea to notify people who are using this 
current version and GEM to be ready for a lock out and sadness..."

good luck,
jamie