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Subject: Re: Hyperthreading test

Author: Jason Kent

Date: 17:08:49 11/27/04

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On November 27, 2004 at 19:23:49, Andrew Platt wrote:

>On November 27, 2004 at 19:12:03, Jason Kent wrote:
>
>>It would be interesting to see how a program like ruffian would do since it is
>>designed for only one processor.
>
>It should be identical. The only differences would be caused by other programs
>that could run on the other logical processor. With both processors activated
>the task manager would show 50% overall CPU consumed which, as I have pointed
>out before, is not incorrect for a multi-processor system when just one of the
>CPUs is being consumed.
>
>Andy.

guess what?  I've had HT on, and run eng-eng matches.  Even though engines like
ruffian would use more than 50%, in spite of what task manager says, (probably
around 90%) they never use 100% like shredder does.



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