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Subject: Re: 32 to 64 bit Crafty speedup (result)

Author: Robert Hyatt

Date: 20:30:40 12/09/03

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On December 09, 2003 at 23:17:10, Slater Wold wrote:

>Results per SPEC & AMD.
>
>
>AMD Opteron 148 (2.2Ghz) - SuSe 9.0 (AMD64) - gcc 3.3.1
>
>Average - 1902
>Peak    - 1936
>
>AMD Opteron 148 (2.2Ghz) - Windows XP Pro - Intel C/C++ 7.0
>
>Average - 1504
>Peak    - 1506
>
>
>Average Speedup - 26%
>Peak Speedup    - 29%


The comparisons are no good.  The intel compiler is much better than
gcc.  Making the 32 bit code appear better than it should, or else making
the 64 bit code appear worse.  You need the same compiler, same operating
system, same everything, except -m32 and -m64 to make this comparison
really accurate.



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