Performance optimizations for Intel Core 2 and Core i7 processors

Jack Howarth howarth@bromo.med.uc.edu
Fri Aug 13 19:50:00 GMT 2010


On Mon, May 17, 2010 at 10:44:57AM +0400, Maxim Kuvyrkov wrote:
> CodeSourcery is working on improving performance for Intel's Core 2 and  
> Core i7 families of processors.
>
> CodeSourcery plans to add support for unaligned vector instructions, to  
> provide fine-tuned scheduling support and to update instruction  
> selection and instruction cost models for Core i7 and Core 2 families of  
> processors.
>
> As usual, CodeSourcery will be contributing its work to GCC.  Currently,  
> our target is the end of GCC 4.6 Stage1.
>
> If your favorite benchmark significantly under-performs on Core 2 or  
> Core i7 CPUs, don't hesitate asking us to take a look@it.
>
> We appreciate Intel sponsoring this project.

Maxim,
    Do you have any updates on the progress of this project? Since
it has been proposed to default intel darwin to -mtune=core2, it
would be very helpful to be able to test (benchmark) any proposed
changes on x86_64-apple-darwin10 with gcc trunk. Thanks in advance.
           Jack

>
>
> Thank you,
>
> -- 
> Maxim Kuvyrkov
> CodeSourcery
> maxim@codesourcery.com
> (650) 331-3385 x724



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