Re: [PATCH] (1/2) reverse mapping VM for 2.5.23 (rmap-13b)

Ingo Molnar
2002-06-19T19:55:33Z

On Wed, 19 Jun 2002, Rik van Riel wrote:

> I am encouraged by Craig's test results, which show that
> rmap did a LOT less swapin IO and rmap with page aging even
> less. The fact that it did too much swapout IO means one
> part of the system needs tuning but doesn't say much about
> the thing as a whole.

btw., isnt there a fair chance that by 'fixing' the aging+rmap code to
swap out less, you'll ultimately swap in more? [because the extra swappout
likely ended up freeing up RAM as well, which in turn decreases the amount
of trashing.]

Ingo