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Subject: Re: Is fritz, shredder or junior hyper-treading enabled?

Author: Robert Hyatt

Date: 20:06:36 07/07/03

Go up one level in this thread


On July 07, 2003 at 21:35:04, Tom Kerrigan wrote:

>On July 07, 2003 at 19:15:35, Peter Stayne wrote:
>
>>Nah, Daniel is right. Even non-SMP programs do gain a slight advantage in speed
>>with HT enabled, though minimal, benchmarks have shown this.
>
>Which benchmarks? I won't believe this until I see it. Operating systems take a
>fraction of 1% of your CPU to do housekeeping when you're running a chess
>program, and only a fraction of that could be offloaded to a 2nd CPU.
>
>-Tom


I think such tests are simply flawed.  In the above case, whatever gets
"offloaded" might well slow down the other logical processor anyway...



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