Re: [PATCH] General purpose zeroed page slab

From: Adam Heath <doogie_at_debian.org>
Date: 2004-10-15 09:36:47
On Thu, 14 Oct 2004, Andi Kleen wrote:

> Also that's pretty dumb. How about keeping track how much of the
> page got non zeroed (e.g. by using a few free words in struct page
> for a coarse grained dirty bitmap)
>
> Then you could memset on free only the parts that got actually
> changed, and never waste cache lines for anything else.

That will fail when a struct is placed in the page, and only the beginning and
end of the struct was changed.

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Received on Thu Oct 14 19:46:07 2004

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