On a related note, there should also be much improved X application usage 
speedups in Linux2.6.

http://slashdot.org/article.pl?sid=03/03/08/162218&mode=thread&tid=104&tid=106
http://kerneltrap.org/node.php?id=603

Cheers,
Sean


On Thursday 13 March 2003 14:34, Alexander Kellett wrote:
> hiya all.
>
> here's an interesting message that i noticed on
> linux-kernel mailing list today, note that its
> been cut down for your reading pleasure :)
>
> anyone out there feel like being a tester? :)
> (assuming you have experience with using devel kernels
>  in the past, i wouldn't touch this otherwise)
>
> mvg,
> Alex
>
> ----- (non verbatum) Forwarded message from Andrew Morton <akpm@digeo.com>
> -----
>
> From: Andrew Morton <akpm@digeo.com>
> To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
> Subject: 2.5.64-mm6
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.64/2.5.64
>-mm6/
>
> . Starting to concentrate a bit more on the nonlinear mapping and objrmap
>   patches.  These conflict to various degrees, but we seem to be getting
> that sorted now.
>
>   To test the nonlinear mapping code more thoroughly I have arranged for
> all executable file-backed mmaps to be treated as nonlinear.
>
>   This means that when an executable is first mapped in, the kernel will
>   slurp the whole thing off disk in one hit.  Some IO changes were made to
>   speed this up.
>
>   **********************************
>   This means that large cache-cold executables start significantly faster.
>   Launching X11+KDE+mozilla goes from 23 seconds to 16.  Starting
> OpenOffice seems to be 2x to 3x faster, and starting Konqueror maybe 3x
> faster too. Interesting.
>   **********************************
>
>   This might cause weird thing to happen, especially on small-memory
> machines.
>
> ----- End forwarded message -----
> _______________________________________________
> Kde-optimize mailing list
> Kde-optimize@mail.kde.org
> http://mail.kde.org/mailman/listinfo/kde-optimize

-- 
Sean McGlynn
sean@tmiau.com

Going into a war without France is like going deer hunting without an 
accordion player.
(borrowed from kuro5hin.org posting ;-)
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