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To: TechieGuy-alt who wrote (72749)2/28/2002 12:59:26 PM
From: milan0Read Replies (3) | Respond to of 275872
 
TG
re:
since the BIOS itself is fooled into seeing 4 processors.

"Not true. Remember, the BIOS sees everything. I doubt that the BIOS would see a two processor system if HT was turned on, on a single processor system."


That is not how I understand this sentence from the article:

"In fact, the illusion is so complete that when you first power up a hyperthreading-enabled system, the BIOS POST (Power-On Self Test) reports the total number of virtual (as opposed to physical) processors."

Also, you ask:

"What, if instead of turning off hyperthreading, the BIOS turned off the second processor and left HT on?"

I ask: What if the BIOS turned off both the second processor and HTh? Then, you would compare 1 processor to 4 processors...

re: "the INTC spooks would know that HT could not account for that type of performance improvement and would have posted here that something was wrong ..."

Right; just trying to understand...

Myke