Re: [PATCH] swapin readahead and fixes

Rik van Riel (H.H.vanRiel@phys.uu.nl)
Sun, 6 Dec 1998 06:29:57 +0100 (CET)

On Sat, 5 Dec 1998, Steve VanDevender wrote:
> Alan Cox writes:
> > > I will compile a new patch (against 2.1.130 again, since
> > > 2.1.131 contains mostly VM mistakes that I want reversed)
> > > this weekend...
> >
> > 2.1.131 is materially faster here than any of the variants I've tried. Are
> > you sure ?
>
> I find 2.1.131 to be much better than its recent predecessors in
> terms of reduced swap activity with the same set of applications
> loaded (X, XEmacs, netscape). Pages are staying in memory when
> they used to be swapped in and out all the time. Whatever
> changed between 2.1.130 and 2.1.131 was hardly any sort of
> mistake, as far as I'm concerned.

2.1.130 contained a few very big mistakes indeed. I am
probably biased because I've never used stock 2.1.130 :)

I just was unhappy that 2.1.131 contained exactly the
wrong solutions to the problems in 2.1.130. You should
be able to place my messages into their correct context
now.

Alan, you will probably be interested in the VM patch
against 2.1.131 I posted earlier. It contains some stuff
which should provide 'interesting' enough to stare at
for over 15 minutes :)

cheers,

Rik -- the flu hits, the flu hits, the flu hits -- MORE
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| Linux memory management tour guide. H.H.vanRiel@phys.uu.nl |
| Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ |
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