Re: [PATCH] shrink struct page for 2.5

Dave Jones (davej@suse.de)
Sat, 16 Feb 2002 21:23:27 +0100

On Sat, Feb 16, 2002 at 06:15:03PM -0200, Rik van Riel wrote:
> Hi,
>
> I've forward-ported a small part of the -rmap patch to 2.5,
> the shrinkage of the struct page. Most of this code is from
> William Irwin and Christoph Hellwig.

Anton Blanchard did some nice benchmarks of this work a while
ago, and noticed that with one of the features (I think the
I forget which its in the l-k archives somewhere) there
seemed to be a noticable performance degradation.
Of course, this was a dbench test, so how reflective this is
of real world is another story..

Maybe Randy Hron can throw it in with the next round of
kernel tests he does ?

> Unfortunately I haven't managed to make 2.5.5-pre2 to boot on
> my machine, so I haven't been able to test this port of the
> patch to 2.5.

Just a complete lock up ? oops ? anything ?

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs
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