[Pixman] add enable-cache-prefetch option

Soeren Sandmann sandmann at daimi.au.dk
Tue Sep 21 08:36:30 PDT 2010

Liu Xinyun <xinyun.liu at intel.com> writes:

>    This patch is to add a new configuration option: enable-cache-prefetch,
> which is default yes.
>    Here is a link which talks on cache issue.
>    http://lists.freedesktop.org/archives/pixman/2010-June/000218.html
>    When disable it on Atom CPU(configured with --enable-cache-prefetch=no),
> it will have a little performance gain. Here is the patch.

I think the cache prefetch code should just be deleted outright. No
benchmarks that I'm aware of show it to be an improvement.


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