[RC5] Does Intel hyperthreading help?

aSe aSe at SysFail.com
Mon Aug 18 18:39:21 EDT 2003


At 10:52 AM 8/18/2003 -0700, you wrote:
>Do either the OGR or RC5 clients gain any benefit from the hyperthreading
>architecture of the newer P4s? I'm about to upgrade from a 1.67 GHz P4 to 
>a 3.0
>GHz P4 with HT.  Was wondering if I'll see much less than than 2x, close to 2x
>or more than 2x performance improvement on RC5/OGR tasks.

I really doubt you would see any improvement from 3.0 with HT to a 3.0 
without HT.
The cores are already designed/tweaked to get all they can.

Second, HT isn't all its cracked up to be. In some benches it is actually 
slower
then just turning it off.  




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