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Subject: Re: 64 bits report on diep

Author: Anthony Cozzie

Date: 17:01:17 06/30/04

Go up one level in this thread


On June 30, 2004 at 13:06:24, Matthew Hull wrote:

>On June 30, 2004 at 12:57:26, Vincent Diepeveen wrote:
>
>>Hello,
>>
>>For diep moving from 32 to 64 bits is not so interesting. But the 8==>16
>>registers is.
>>
>>All tested with same diep version :
>>
>>at windows 64 bits :
>>
>>net2003 32 bits : 135k nps
>>amd SDK 64 bits : 130k nps
>>gcc 3.4 32 bits : 130k nps  (with pgo)
>>
>>at linux (gentoo) 64 bits :
>>gcc 3.3.3 64 bits : 140k nps
>>
>>So it's trivial that moving from 8 to 16 registers increased it by 10k nps,
>>despite also losing to larger instruction sizes.
>
>
>
>If you had gone with bitboards, you would have seen a 47% increase.

I think we've had the bitboard debate enough times . . at least 40 since I've
been around, and probably more before that :)

anthony



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