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Subject: Re: Hyperthreading vs. dual configuration performance? Somewhat OT

Author: Peter Kasinski

Date: 06:26:41 02/21/03

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On February 21, 2003 at 03:32:44, Tom Kerrigan wrote:

>On February 20, 2003 at 22:07:12, P. Massie wrote:
>
>>I'm not an expert on HT, but based on what I've read about it, and what I know
>>about how computers work I suspect it will be somewhat better than a "normal"
>>processor for this, but not nearly as good as a true dual.  My suggestion would
>>be a dual AMD or Xeon.
>
>Actually, any sort of stuttering/unusability you get from multitasking on one
>CPU is because of a poor scheduling algorithm in your operating system (or at
>least one that leaves room for improvement). Because HT presents one processor
>as two to the OS, that scheduling problem goes away. It would not surprise me if
>HT chips were dramatically more responsive (although not that much faster) when
>multitasking, although I'm not saying this is a certainty. I have never used a
>HT system myself.
>
>-Tom

Indeed, this continues to be my main observation based on the comparison btw P4
3.06GHz and a dual P3-933.  Not the raw speed, but responsiveness (under W2k).

PK





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