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Subject: Re: 64 bits report on diep

Author: Vincent Diepeveen

Date: 17:04:37 06/30/04

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On June 30, 2004 at 18:48:31, Andreas Guettinger 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.
>
>
>Do you know if there'd be a improvement in knps using gcc 3.4 over 3.3.3 in
>linux?
>
>regards
>Andy

I had problems getting bugfree compiles with 3.4, 3.3.3 editted by gentoo looked
more stable to me. 3.4 i tried using mingw. -O3 at 3.3.3 already slowed diep
down. all those fancy options in 3.4 didn't seem to work anyway for diep when
compared with default compiles.

perhaps i'll get latest snapshot from 3.4 at the dual opteron real soon too and
try for the wcc 2004 version.

For sure is that it's in 64 bits using 16 registers considerable faster than any
windows compiler is.

Linux is the place to be now!





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