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To: Joe NYC who wrote (60573)10/26/2001 5:34:30 PM
From: wanna_bmwRead Replies (1) | Respond to of 275872
 
Joe, Re: "Or you can say that on certain instruction streams, P4 behaves pathologically. When P4 is removed and replaced with more efficient CPU, performance is much better."

That's like getting low octane gas for a high performance car, but instead of upgrading the gas, you instead replace the engine with something smaller.

wanna_bmw



To: Joe NYC who wrote (60573)10/26/2001 11:21:08 PM
From: dale_laroyRespond to of 275872
 
>Or you can say that on certain instruction streams, P4 behaves pathologically. When P4 is removed and replaced with more efficient CPU, performance is much better.<

It is a little of each. P4 sometimes behaves pathologically, and sometimes it is the instruction streams that are pathological. When execution speed can be significantly enhanced for all x86 processors just by removing unnecessary FXCH instructions, it is the code that is pathological.


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