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Subject: Re: replacing the page replacement algo.
From: Shaya Potter <spotter@cs.columbia.edu>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Shaya Potter <spotter@opus.cs.columbia.edu>, linux-kernel@vger.kernel.org
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Date: 18 Nov 2001 21:31:15 -0500
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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.  If instead of having it step through the mmlist, I give it the
explicit mm of the processes that I want a page swapped out from? so I
could implement my algorithm either inside that func or as function
calls from it and have it pass onto swap_out_mm() the mm of the
processes I choose to swap out.

or am I totally misunderstanding something here? (likely, as this is my
first time digging into the vm and trying to learn about it)

thanks,

shaya potter

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