Hallo, Hans-Christoph Steiner hat gesagt: // Hans-Christoph Steiner wrote:
On Jul 12, 2007, at 2:45 PM, Georg Holzmann wrote:
Hallo!
the other thing is only related to my setup i guess. i would like to know if anyone experience this. if i don't chmod +s /usr/local/bin/pd then i have many glitches in pd (xruns). i am using ubuntu studio (feisty) with the realtime kernel.
are you starting with pd -rt ?
On GNU/Linux, does Pd use realtime or regular mode by default? It
sounds like maybe -rt should be added to the /usr/local/lib/pd/ default.pdsettings that's included in the package.
No, better not: It's dangerous, if your patch is buggy and pd runs wild. I only use -rt during performances.
Regarding patco's problem with realtime mode: "chmod +s" is not a good idea as it's a potentially big security hole opening up your system for all kind of local exploits.
And it's not necessary, if your system is set up correctly. Correctly means, that you need a current libpam (Ubuntustudio has it) and you need to set up /etc/security/limits.conf accordingly. Accordingly means, have something like this in it:
@audio - nice -10 @audio - rtprio 99 @audio - memlock -1
and your user needs to be in group "audio" then.
If even then, Pd's realtime mode isn't activated, then something much deeper is wrong.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__