Messages in this thread | | | From | "Stephen C. Tweedie" <> | Date | Fri, 12 Nov 1999 17:33:35 +0000 (GMT) | Subject | Re: [patch] zoned-2.3.27-E0 |
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Hi,
On Fri, 12 Nov 1999 15:02:31 +0100 (CET), Ingo Molnar <mingo@chiara.csoma.elte.hu> said:
> Stephen noticed that 2.3.27 doesnt boot on <=16MB boxes due to the zoned > allocator changes. The attached patch should fix this. Unfortunately i > found no way to prevent introducing the runtime 'nr_zones' variable.
A quick special-case check on zones known to be empty would allow you to maintain performance even if you have zones which will never have any pages in them on a given machine.
You need this anyway --- Alan pointed out that it is a significant hit on benchmarks if, during normal running, one zone fills up and you start falling back routinely to a lower zone.
--Stephen
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