Re: [PATCH] reapswap for 2.4.5-ac10

[Andrew Morton <andrewm@uow.edu.au>]

Jonathan Morton wrote:
> 
> >So the more users, the more slowly it ages.  You get the idea.
> 
> However big you make that scaling constant, you'll always find some pages
> which have more users than that.

2^24?

> BUT, as it turns out, refill_inactive_scan() already does ageing down on a
> page-by-page basis, rather than process-by-process.

Yes.  page->count needs looking at if you're doing physically-addressed
scanning.  Rik's patch probably does that.
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