[PlanetCCRMA] Latest updates = total freeze

Fernando Lopez-Lezcano nando@ccrma.Stanford.EDU
Thu Apr 7 10:56:02 2005

On Thu, 2005-04-07 at 10:43, Mark Knecht wrote:
> On 07 Apr 2005 10:20:28 -0700, Fernando Lopez-Lezcano
> <nando@ccrma.stanford.edu> wrote:
> > > Hmmm, that should have no consequences, the rtirq script is meaningless
> > > in the stable kernel as there are no separate processes and schedulling
> > > priorities for the interrupts. A newer/better version I just got from
> > > Rui is in the works.
> > 
> > Done, it is in the repository... you could upgrade if you want to test
> > it. Could you check (before or after) what the priorities of the
> > interrupts are? (the new version has much better reporting of the status
> > - thanks Rui!):
> >   /etc/rc.d/init.d/rtirq status
> What kernels do we need to be running to use this and get meaningful results? 
> [root@Godzilla root]# /etc/rc.d/init.d/rtirq status
> [root@Godzilla root]# uname -a
> Linux Godzilla 2.6.10-2.1.ll.rhfc2.ccrma #1 Thu Dec 30 06:24:24 EST
> 2004 i686 athlon i386 GNU/Linux
> [root@Godzilla root]#

This only makes sense on the "edge" rdt kernels (in those kernels the
interrupt requests have schedulling classes and priorities and that's
what Rui's script optimizes). 

> Granted, I did NOT update to anything new. I jsut tried running what
> was here. I've started getting more xruns over the last few days so I
> guess I need to do some work. (If I knew *what* work to do!) ;-)

Hmmm, there should not be any changes in the past few days that could
affect latency (save for yesterday's changes). 

-- Fernando