Re: SGI Interrupts

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Angus Dorbie (dorbie++at++sgi.com)
Fri, 22 May 1998 17:51:01 -0700

> Sorroche, Joe CEI-TACCSF wrote:
>
> People;
>
> We're running Performer 2.2 on an Onyx, IRIX 6.2 OS. When we
> run gr_osview, for a second, the interrupts "peg" the processor. Any
> hints?
>

You need to isolate and lockdown the CPUs you need for real-time and
put a NOINTR=cpu_number directive for those CPUs in the stune file
(I think) I can't confirm this right now but there should be mention
of this in the archives and no doubt someone with a better memory than
I will post the exact details.

The new IRIX 6.5 OS has really kernel threads & interrupts so you
shouldn't have to worry about this in future unless you are _really_
running at a high frame rate (I mean kHz).

Cheers,Angus.

-- 
"Only the mediocre are always at their best." -- Jean Giraudoux 


For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/
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