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Date:      Wed, 18 Mar 1998 01:41:26 -0800 (PST)
From:      Jaye Mathisen <mrcpu@cdsnet.net>
To:        current@FreeBSD.ORG
Subject:   Stream_d benchmark... Wow, there really are differences in hardware
Message-ID:  <Pine.NEB.3.95.980318013724.2842E-100000@schizo.cdsnet.net>

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I figured that within reason, most mb's would have similar performance,
but I was wrong.

All boxes are P6-200's, 256MB RAM (all RAM is 60ns FP as far as I know).

Box 1 is a SuperMicro P6DNE:
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          60.7395       0.2704       0.2634       0.2832
Scale:         60.8640       0.2719       0.2629       0.3097
Add:           70.9688       0.3508       0.3382       0.3602
Triad:         71.1647       0.3494       0.3372       0.3565


Box 2 is a Digital Prioris HX6000
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          73.3551       0.2197       0.2181       0.2249
Scale:         74.6067       0.2164       0.2145       0.2182
Add:           81.0584       0.2974       0.2961       0.3002
Triad:         77.4268       0.3108       0.3100       0.3122

Box 3 is a Digital Prioris ZX6000
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          84.8807       0.2018       0.1885       0.2834
Scale:         97.5461       0.1661       0.1640       0.1720
Add:          111.6549       0.2179       0.2149       0.2247
Triad:        100.9468       0.2659       0.2377       0.4237


Box 3 uses 256bit interleaved memory, rather than whatever the
"standard" is.  


I thought it was just a marketing gimmick, but it seems to really
make a difference.



Have to see if it helps on some worldstone's.


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