On Thu, 14 Sep 2000, Rik van Riel wrote:
> On Wed, 13 Sep 2000, David S. Miller wrote:
>
> > In page_launder() about halfway down there is this sequence of tests
> > on LRU pages:
> >
> > } else if (page_count(page) > 1) {
> > } else /* page->mapping && page_count(page) == 1 */ {
>
> Indeed, you're right. This bug certainly explains some
> of the performance things I've seen in the stress test
> last night...
A new patch with Davem's bugfix has been uploaded and
performance seems to be quite a bit better now...
http://www.surriel.com/patches/
Unless somebody else manages to find a bug in this patch,
this will be the last patch at this feature level and the
next patch will contain a new feature. The new feature in
question will be either the out of memory killer, or Ben
LaHaise's readahead-on-VMA-level code.
(probably the OOM killer since that is a stability-related
thing and the other is "just" a performance tweak)
regards,
Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.com/
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