CompuServe Messages

Kevin, From my poking around in the NT forum I've come across these figures for adding extra Pentium processors to NT. The second processor adds about 60% of the performance of the first. The third ads only about 40% of the performance of the first. And the fourth and subsequent chips add less than 30% of the first processors performance. So from my way of looking at it the third and fourth chips are a Waste of performance! Other tidbits on SMP under NT, supposedly the PPC chips are better at scaling under NT. The numbers I saw were 2nd 70%, 3rd 60% . The P6 chips, besides being fast when running 32 bit code (Intel even says that they will drop enough cycles during 16 bit code to make them slower than a comparable P5) they will be very fast in SMP machines. The internal CPU bus was designed for up to 4 P6 to run together without additional logic. Because each P6 has its Own 256k or 512k of internal cache they will be faster than any P5 SMP where all chips share the same external cache. If anybody can dispute these figures please do! I am by no means an expert on the subject. It would be nice to see some good benchmarks on NT SMP with various CPUs and various numbers of chips. My 2 bytes. -Matt (Active Media Graphics) Y 50 /g fM/