Re: MM VM patches was: 2.6.3-mm4
From: Nick Piggin
Date: Mon Mar 01 2004 - 04:13:11 EST
Nick Piggin wrote:
There are a few things backed out now in 2.6.4-rc1-mm1, and quite a
few other changes. I hope we can trouble you to test 2.6.4-rc1-mm1?
Tell me, do you have highmem enabled on this system? If so, swapping
might be explained by the batching patch. With it, a small highmem
zone could possibly place quite a lot more pressure on a large
ZONE_NORMAL.
2.6.4-rc1-mm1 sould do much better here.
Gah no. It would have the same problem actually, if that is indeed
what is happening.
It will take a bit more work to solve this in rc1-mm1. You would
probably want to explicitly use incremental min limits for kswapd.
(background info in kswapd-avoid-higher-zones.patch)
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