Re: 2.6.15-rc5-mm3

From: Mattia Dongili
Date: Thu Dec 22 2005 - 13:12:15 EST


On Thu, Dec 22, 2005 at 12:14:18AM +0100, Jesper Juhl wrote:
> On 12/15/05, Andrew Morton <akpm@xxxxxxxx> wrote:
> >
> <!-- snip -->
> >
> > -mm-implement-swap-prefetching.patch
> > -mm-implement-swap-prefetching-default-y.patch
> > -mm-implement-swap-prefetching-tweaks.patch
> > -mm-implement-swap-prefetching-tweaks-2.patch
> > -mm-swap-prefetch-magnify.patch
> >
> > Dropped swap prefetching, sorry. I wasn't able to notice much benefit from
> > it in my testing, and the number of mm/ patches in getting crazy, so we don't
> > have capacity for speculative things at present.
> >
> <!-- snip -->
>
> This is a bit sad.

same feeling for me.
I did not notice Andrew's log saying he dropped the patch in the first
place but I noticed a slower reaction time (in similar conditions as
Jesper) that lead me to the absence of swap prefetching in -mm3.
PIII-M 1GHz + 256M Ram + 256M swap here.

--
mattia
:wq!
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