Re: Optimizing libc/string for amd64(?)

From: Martin <nakal_at_nurfuerspam.de>
Date: Sun, 05 Jun 2005 12:20:35 +0200
Oliver Lehmann wrote:

> AMD64 3500+ running 6.0-CURRENT/amd64.
> I've no i386 with aprox. the same speed I could compare with.
> 
> TEST                : Iterations/sec.  : Old Index   : New Index
>                     :                  : Pentium 90* : AMD K6/233*
> --------------------:------------------:-------------:------------
> NUMERIC SORT        :          2151.5  :      55.18  :      18.12
> STRING SORT         :          185.65  :      82.95  :      12.84
> BITFIELD            :      4.8454e+08  :      83.12  :      17.36
> FP EMULATION        :           140.8  :      67.56  :      15.59
> FOURIER             :           17614  :      20.03  :      11.25
> ASSIGNMENT          :          25.529  :      97.14  :      25.20
> IDEA                :          2779.5  :      42.51  :      12.62
> HUFFMAN             :            1715  :      47.56  :      15.19
> NEURAL NET          :          24.339  :      39.10  :      16.45
> LU DECOMPOSITION    :            1145  :      59.32  :      42.83

STRINGSORT is ok on your box. What are the CFLAGS in your make.conf?
I usually use: "CFLAGS=-O -pipe".

Only IDEA is slightly better on that Athlon64 3000+ (3028).

Martin
Received on Sun Jun 05 2005 - 08:21:15 UTC

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