[rescue] SGI O2 Rescue
Jonathan C. Patschke
jp at celestrion.net
Fri Sep 12 11:46:50 CDT 2003
On Fri, 12 Sep 2003, Joshua D. Boyd wrote:
> Are you sure about that? I hadn't heard of the R10ks being flaky doing
> texturing. I had heard of them being flaky doing anything with the AV
> module, if he has that.
I think they're two separate problems, one of which has a patch. SGI
didn't make very many R10k O2s, for all the problems they had with them
in the hands of their target audience.
> The R10ks should be able to handle a fair amount of CPU work. Not as
> much as an Octane, but still a nice amount. It just has an unreasonably
> high memory latency, suposedly because of how they attached it to the
Yep. Memory sits on PCI in the O2. I don't think the CPU has a special
> It can do fancy tricks, but with R10ks it will stutter more than R5ks.
I've always wondered why that is. Clock-for-clock, the R10k should be
-much- faster than an R5k.
> You shouldn't have to go all that low level. I would personally expect
> that dmedia would be able to pull it off on that machine.
It probably can, but I need to save enough clock cycles for some minor
OpenGL that needs to happen -each- frame, and, of course, everything has
to happen in 1/30th of a second. I'll try dmedia first, though.
> However, I haven't had an oportunity to really play with it since the
> O2 I had extended access to was bogged down with only 64 megs of ram
That's my current problem. 128M is not enough for doing textured OpenGL
under IRIX 6.5 on a UMA machine like the O2.
> and was running enlightenment and I couldn't change that.
Enlightenment on an SGI? That's really, really disgusting.
Jonathan Patschke ) "Gamer weenies...are the sludge at the bottom
Elgin, TX ( of the user swamp." --Gary Nichols
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