Re: discontiguous memory platforms

From: Jesse Barnes (
Date: Wed May 01 2002 - 18:23:43 EST

On Thu, May 02, 2002 at 01:17:50AM +0200, Andrea Arcangeli wrote:
> so ia64 is one of those archs with a ram layout with huge holes in the
> middle of the ram of the nodes? I'd be curious to know what's the

Well, our ia64 platform is at least, but I think there are others.

> hardware advantage of designing the ram layout in such a way, compared
> to all other numa archs that I deal with. Also if you know other archs
> with huge holes in the middle of the ram of the nodes I'd be curious to
> know about them too. thanks for the interesting info!

AFAIK, some MIPS platforms (both NUMA and non-NUMA) have memory
layouts like this too. I've never done hardware design before, so I'm
not sure if there's a good reason for such layouts. Ralf or Daniel
might be able to shed some more light on that...

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