On Wednesday 25 July 2001 18:41, Rik van Riel wrote:
> On Wed, 25 Jul 2001, Daniel Phillips wrote:
> > On Wednesday 25 July 2001 08:33, Marcelo Tosatti wrote:
> > > Now I'm not sure why directly adding swapcache pages to the
> > > inactive dirty lits with 0 zero age improves things.
> >
> > Because it moves the page rapidly down the inactive queue towards
> > the ->writepage instead of leaving it floating around on the active
> > ring waiting to be noticed. We already know we want to evict that
> > page,
>
> We don't.
>
> The page gets unmapped and added to the swap cache the first
> time it wasn't referenced by the process.
>
> This is before any page aging is done.
True, it's more accurate to say that we already know we want to *try*
evicting that page. A wrong guess should not make it all the way down
the inactive queue.
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This archive was generated by hypermail 2b29 : Tue Jul 31 2001 - 21:00:23 EST