Re: [PATCH] Rmap speedup

Andrew Morton (akpm@zip.com.au)
Wed, 07 Aug 2002 15:48:41 -0700


Daniel Phillips wrote:
>
> ..
> > Not to mention the superfluous IO being scheduled today.
>
> Yes, well at this point we're suppose to demonstrate how much better
> rmap does on that, are we not.

Well let it be said that the 2.5.30 VM is by no means "Rik's
rmap VM". It's the 2.4.15 VM with pte-chains bolted on the side,
and it's fairly sucky in several regards.

Until the big stuff is settled in (locking rework, per-zone LRU,
slablru, ...) there's not a lot of point trying to finetune
the 2.5.30 VM.

But a convincing demonstration of the advantages of the 2.4 rmap
patch would set a lot of minds at ease ;)
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