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Subject: Re: SURPRISING RESULTS P4 Xeon dual 2.8Ghz

Author: Matt Taylor

Date: 09:04:44 12/17/02

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On December 17, 2002 at 11:40:37, Gian-Carlo Pascutto wrote:

>On December 17, 2002 at 10:31:02, Robert Hyatt wrote:
>
>>It doesn't necessarily get slower.  And once you move to windows .new, or
>>the new linux kernel gets fixed, this won't happen at all as both of these
>>systems will understand that two threads need to run on two physical processors
>>rather than on two logical processors on the same physical processor...
>>
>>what is your point?  This is a sudden revellation to you?  :)
>
>Yes. The thing is, Microsoft is _specifically_ advertising Windows XP
>(which was used for this test) as 'HyperThreading optimized'.
>
>This test shows that that should be taken with a few mountains
>of salt, considering the OS cannot even schedule correctly!
>
>This means that _right now_, there are severe issues with HT
>on a dual system. And they won't be resolved until a next generation
>of OS comes out.
>
>--
>GCP

Windows .net Server = Windows XP Server

-Matt



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