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SubjectRe: A scrub daemon (prezeroing)
On Fri, 4 Feb 2005, Paul Mackerras wrote:

> > Yes but its a short burst that only occurs very infrequestly and it takes
>
> It occurs just as often as we clear pages in the page fault handler.
> We aren't clearing any fewer pages by prezeroing, we are just clearing
> them a bit earlier.

scrubd clears pages of orders 7-4 by default. That means 2^4 to 2^7
pages are cleared at once.
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