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To: wanna_bmw who wrote (60443)10/26/2001 1:47:46 PM
From: jcholewaRespond to of 275872
 
> P.S. I'd be interested in seeing the results of those
> Povray optimizations. I hear that the Pentium 4 can do
> much better with rendering when the application has
> certain pathological instruction streams removed and
> replaced with more efficient code.

Well, any modern processor will get a pretty strong boost going to a more modern compiler. In general, though, the relative boosts will be pretty similar.

We will see if P4 gains any interesting amounts of boostage a la instruction extensions. This will, of course, depend on the intelligence of the compiler (remember, scheduling isn't a walk in the park -- if it was, then P4 would be much, much faster in, for instance, Maya 4) and on the pressure of other areas, such as on the decode stage[s].



To: wanna_bmw who wrote (60443)10/26/2001 5:25:01 PM
From: Joe NYCRead Replies (2) | Respond to of 275872
 
wbmw,

I hear that the Pentium 4 can do much better with rendering when the application has certain pathological instruction streams removed and replaced with more efficient code.

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. <g>

Joe