On 2013-01-15 02:41, 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] Just as a comparision, using the DEC PDP-11 C compiler: JOCKE (11/94 using simh on a i7 at 3.4 GHz): Loops: 1000, Iterations: 1, Duration: 16 sec. C Converted Double Precision Whetstones: 6.3 MIPS MIM (11/74 using e11 on a PIII at 548 MHz): Loops: 1000, Iterations: 1, Duration: 55 sec. C Converted Double Precision Whetstones: 1.8 MIPS PONDUS (11/93 using a J11 at 18 MHz or so): Loops: 1000, Iterations: 1, Duration: 639 sec. C Converted Double Precision Whetstones: 156.5 KIPS Now, the DEC PDP-11 C compiler produces rather poor code, but still some fun numbers to look at. (And E11 looks pretty good.) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol