[PD] CPU 100% after suspend (was Re: closed window not destroyed? (in l2ork))

András Murányi muranyia at gmail.com
Fri Jul 5 12:08:14 CEST 2013

On Wed, Jun 19, 2013 at 9:49 AM, Roman Haefeli <reduzent at gmail.com> wrote:

> On Tue, 2013-06-18 at 22:58 +0200, András Murányi wrote:
> > Hi List,
> >
> >
> > I've got used to putting my PC to sleep (aka hibernation) often
> > lately. Now there is this behaviour of Pd that when you leave a patch
> > open and put the computer to sleep, once it wakes up Pd will try to do
> > everything it missed while the computer was sleeping, so the CPU goes
> > 100% for quite a while. I suppose this is by design.
> >
> > What I've just noticed using l2ork is that I had closed my patch
> > before hibernating (in order to avoid the CPU boost when waking up),
> > put the computer to sleep for a few hours, and when i woke it up,
> > surprisingly the 100% CPU boost still happened - with only the main
> > window and console open.
> >
> > This makes me think some things are not destroyed properly when a
> > patch is closed.
> >
> > Any thoughts appreciated...

I've tested it out a bit, and IOhannes and Ivica are right: it's a cleanup
problem, rather something else. (It happens also when there is and there
was no patch open).

> Does it help to toggle DSP off and on, when Pd is in this post-suspend
> mode? I had the impression it did, but I wasn't sure if it was just a
> coincident, that CPU usage stopped at the same moment.
> Roman

Yes! I was actually toggling DSP on and off, because I usually keep it off.
When I switched it on, CPU usage instantly dropped to normal.
Seems like a symptom that is avoidable...

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