Performance optimizations for Intel Core 2 and Core i7 processors

[Maxim Kuvyrkov]

On 5/21/10 9:06 PM, Vladimir N. Makarov wrote:
> On 05/17/2010 02:44 AM, Maxim Kuvyrkov wrote:
...
>> If your favorite benchmark significantly under-performs on Core 2 or
>> Core i7 CPUs, don't hesitate asking us to take a look at it.
> What I saw is people complaining about -mtune=core2 for polyhedron
>
> http://gcc.gnu.org/ml/gcc-patches/2010-02/msg01272.html
>
> The biggest complaint was on mdbx (about 16%).

Thank you for the pointers and analysis!

...
> Also I think it is important to have a pipeline description for
> Core2/Core i7 or at least to use it from generic.

Right.  We will be adding a pipeline description for Core 2/i7.

Thank you,

-- 
Maxim Kuvyrkov
CodeSourcery
maxim@codesourcery.com
(650) 331-3385 x724