Re: [PATCH] GFP_THISNODE for the slab allocator

[Paul Jackson <pj@sgi.com>]

Andrew wrote:
> Well some bright spark went and had the idea of using cpusets and fake numa
> nodes as a means of memory paritioning, didn't he?

If that bright spark is lurking here, perhaps he could educate
me a little.  I mostly ignored the fake numa node stuff when it
went by, because I figured it was just an amusing novelty.

Perhaps its time I learned why it is valuable.  Can someone
explain it to me, and describe a bit the situations in which
it is useful.  Seems like NUMA mechanisms are being (ab)used
for micro-partitioning memory.

As Andrew speculates, this could lead to reconsidering and
fancifying up some of the mechanisms, to cover a wider range
of situations efficiently.

Thanks.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@sgi.com> 1.925.600.0401

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