Re: [LAD] PHASEX-0.10.2

On Thu, 2007-05-24 at 03:09 -0700, William Weston wrote:
> On Thu, 24 May 2007, Lars Luthman wrote:
>
> > On Thu, 2007-05-24 at 00:56 -0700, William Weston wrote:
> > > On Wed, 23 May 2007, pete shorthose wrote:
> > >
> > > > On Tue, 2007-05-22 at 16:21 -0700, William Weston wrote:
> > > > > I'll be looking into the patch loading issue next. From what I can
> > > > > tell, the first access of the File menu (either by hitting it
> > > > > directly or accessing an item through a keyboard acceleration)
> > > > > causes enough of a CPU hit to disrupt other threads. This is the
> > > > > only menu that currently uses the GTK stock items and keyboard
> > > > > accelerations. Any GTK hackers out there have any tricks for making
> > > > > sure a GtkAccelGroup has fully initialized itself?
> > > >
> > > > do you have a specific reason to lay blame on the accel group?
> > > > more than say, the open dialog?
> > >
> > > This reasoning was based on the fact that only the file menu uses
> > > accelerators, and only the file menu experienced the delay (and only
> > > on the first access), whether accessed by clicking with the mouse or
> > > using a keyboard accelerator. The first access of the file menu
> > > would cause JACK xruns about half the time, while opening a file
> > > dialog after the file menu has already been accesed would not cause
> > > xruns.
> >
> > xruns? The GUI should _never_ be able to affect the audio thread's
> > performance. Aren't you running JACK in realtime mode?
>
> Yup, I'm running JACK with realtime scheduling, and I had exactly
> the same thought. The GUI is running at a normal SCHED_OTHER
> priority, and it holds no absolutely no locks needed by other
> threads after everything is up and running.

What kernel is this? Are you using Ingo Molnar's RT patch?

--ll

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