[PD] Running Pd with real-time priority
msp at ucsd.edu
Wed Mar 29 09:45:15 CEST 2017
I'm not sure but I think if Pd is running with jack support compiled in it
gets prioriy 6/8 and if not, 95/97 (which is how I originally had set it,
but jack imposes its own priority levels).
On Wed, Mar 29, 2017 at 08:29:34AM +0200, katja wrote:
> Which Pd version do you run? I remember having the same issue with Pd
> on Raspberry Pi some years ago. Pd at that time asked for rtprio 99
> and didn't get it with jackd default settings. In response Miller has
> then changed Pd's rtprio requirement to 95 (I don't remember which Pd
> version exactly, it was probably around 0.45). If the Odroid image
> ships an old Pd, setting rtprio 99 could make the difference.
> On Wed, Mar 29, 2017 at 1:16 AM, Alexandros Drymonitis <adrcki at gmail.com> wrote:
> > When running Pd, it is supposed to run with real-time priority by default,
> > right?
> > When launching Pd from the terminal, you usually get this printed:
> > priority 6 scheduling enabled.
> > priority 8 scheduling enabled.
> > I'm running Pd on an Odroid-U3, and launching Pd from the terminal doesn't
> > print anything like this.
> > I'm using Pd with jack, which I run with real-time priority (I'm using
> > Qjackctl and I'm clicking on the Realtime tick-box). I have the following
> > both in /etc/security/limits.conf and in /etc/security/limits.d/audio.conf:
> > @audio - rtprio 95
> > @audio - memlock unlimi
> > ted
> > @audio - nice -19
> > The user odroir (which is the default user in the Odroid image) is a member
> > of the audio group. What am I missing here? Is Pd running with real-time
> > priority indeed, or do I need to do something more than that to run with
> > real-time priority?
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