Re: [PATCH] vm - swap_prefetch-15

From: Paolo Ciarrocchi
Date: Fri Oct 07 2005 - 06:46:45 EST


On 10/6/05, Con Kolivas <kernel@xxxxxxxxxxx> wrote:
> The last known bugs were addressed in this latest version of the swap
> prefetching patch. Thanks to the testers out there who helped it get this
> far.
>
> -Prefetched pages weren't handled properly by the lru lists.
> -Prefetch groups are now 10 times larger when laptop_mode is enabled thus
> decreasing the amount of time spent prefetching and thus the disk spinning.
> -Documentation as suggested by Ingo Oeser
>
> Incremental patches and latest available here:
> http://ck.kolivas.org/patches/swap-prefetch/
>

Ciao Con,
i downloading right now kernel 2.6.14-rc3 and your latest patch (v15),
in the weekend I'll update my Ubuntu platform and I'll like to compare
performance of vanilla vs vm-swap_prefetch.

Any hint about what kind of instrumentation I could use in order to
get interesting and useful numbers ?

Thanks!

Regards,
--
Paolo
http://technologynews.altervista.org
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