On Mon, 17 Sep 2007, Bernd Schmidt wrote:
> Christoph Lameter wrote:
> > True. That is why we want to limit the number of unmovable allocations and
> > that is why ZONE_MOVABLE exists to limit those. However, unmovable
> > allocations are already rare today. The overwhelming majority of allocations
> > are movable and reclaimable. You can see that f.e. by looking at
> > /proc/meminfo and see how high SUnreclaim: is (does not catch everything but
> > its a good indicator).
>
> Just to inject another factor into the discussion, please remember that Linux
> also runs on nommu systems, where things like user space allocations are
> neither movable nor reclaimable.
Hmmm.... However, sorting of the allocations would result in avoiding
defragmentation to some degree?
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