Re: replacing the page replacement algo.

From: Rik van Riel (riel@conectiva.com.br)
Date: Sun Nov 18 2001 - 21:38:33 EST

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On 18 Nov 2001, Shaya Potter wrote:
> On Sun, 2001-11-18 at 20:44, Rik van Riel wrote:
> > On 18 Nov 2001, Shaya Potter wrote:
> >
> > > If I wanted to experiment with different algorithms that chose which
> > > page to replace (say on a page fault) what functions would I have to
> > > replace?
> >
> > try_to_free_pages() and all the functions it calls.
>
> I was looking at vmscan.c and it appears that swap_out() is what I
> want.

You're missing the fact here that swap_out() only unmaps
pages from processes' page tables, actual reclaiming of
the pages is done elsewhere.

Rik

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