On 15 Jan 2013, at 01:41, sampsa at mac.com wrote: Somebody was asking for a better benchmark than VUPS earlier, I found WHETSTONE.C on GORVAX which calculates MIPS. Not sure how much better it is than VUPS.COM, but here are some results: GORVAX (SIMH VAX, on a Core i5) Loops: 1000, Iterations: 1, Duration: 5 sec. C Converted Double Precision Whetstones: 20.0 MIPS CHIMPY (DS10) Loops: 10000, Iterations: 1, Duration: 2 sec. C Converted Double Precision Whetstones: 500.0 MIPS RHESUS (rx2600) Loops: 100000, Iterations: 1, Duration: 4 sec. C Converted Double Precision Whetstones: 2500.0 MIPS I've attached the C source to this message, and will put binaries for all three platforms as well as the source in RHESUS::[.MEDIALIB.WHETSTONE] The cool thing about this is is compiles on other platforms, so we can do cool stuff like: - Compare the available MIPS inside an emulator to the available MIPS on the host OS, giving a MIPS:MIPS ratio for emulator code - Compare directly the power of older CPUs with newer ones and also derive ap erformance MIPS/Watt figure for various systems. - Find out how incredibly CPUs have advanced in 50 years! -- Mark Benson http://DECtec.info Twitter: @DECtecInfo HECnet: STAR69::MARK Online Resource & Mailing List for DEC Enthusiasts.