Re: [RFC][DATA] re "ongoing vm suckage"

Rik van Riel (riel@conectiva.com.br)
Sat, 4 Aug 2001 04:13:26 -0300 (BRST)


On Sat, 4 Aug 2001, Marcelo Tosatti wrote:

> Well, the freepages_high change needs more work.
>
> Normal allocations are not going to easily "fall down" to lower zones
> because the high zones will be kept at freepages.high most of the time.

Actually, the first allocation loop in __alloc_pages()
is testing against zone->pages_high and allocating only
from zones which have MORE than this.

So I guess this should only result in a somewhat slower
and/or softer fallback and definately worth a try.

Oh, and we definately need to un-lazy the queue movement
from the inactive_clean list. Having all of the pages you
counted on as being reclaimable referenced is a very bad
surprise ...

regards,

Rik

--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

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