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Subject: Re: Some numbers about opteron's scalabitlity

Author: Robert Hyatt

Date: 08:09:19 07/31/03

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On July 31, 2003 at 05:22:05, Vincent Lejeune wrote:

>
>http://www.theinquirer.net/?article=10785
>
>...
>Single CPU+Hyperthreading P4c-2.6 800 Mhz FSB:
>One job at a time 82.20 seconds
>Two jobs at a time 138.21 seconds
>Scaled 1.18 times.
>
>Dual p4-3.0/533 Mhz FSB (fastest dual p4 made)
>One job at a time 84.98 seconds
>Two jobs at a time 155.92 seconds
>Scaled 1.09 times.

Something is wrong there.

This means that (a) whomever ran the benchmark didn't know what he was
doing or (b) he didn't have both cpus running.


>
>Dual Opteron 240s (the slowest Opteron)
>One job at a time 97.09 seconds
>Two jobs at a time 98.77
>Scaled 1.96 times.
>
>He adds: "Basically the opteron scales amazingly well
>...



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