On 12/15/05, Andrew Morton <[email protected]> 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.
On my system (1.4GHz Athlon w/512MB RAM, 768MB swap) this did have an effect.
One situation in particular where it helped (and which is a common
case for me) was when I had OpenOffice2 + Eclipse (with CDT) + xchat +
nedit + Firefox + a few konsole windows open (running KDE 3.5 btw and
all apps usually have a lot of content loaded), minimized all the apps
and then started an allyesconfig build in one window - the
allyesconfig build would drag the machine to its knees and eat up more
or less all RAM + swap, so I usually left it alone for a while to
finish and when I then came back later and reactivated the apps I had
minimized they came back pretty fast. Without the swap prefetch
patches things come back somewhat slower - it's not an earth
shattering difference, but it's definately noticable.
--
Jesper Juhl <[email protected]>
Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please http://www.expita.com/nomime.html
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