jeff1@garfield.UUCP (11/19/85)
I just that the Commodore 64 has a Dhrystone rating of 36. Has anyone run the dhrystone test on a CoCo? I'd be interested to see what the result is. We'd better beat the 64! Jeff Sparkes jeff1@garfield.UUCP jeff1@garfield.mun.cdn <- CDNnet
goldman@ucsfcca.UUCP (Eric Goldman) (11/26/85)
In article <4380@garfield.UUCP> jeff1@garfield.UUCP (Jeff Sparkes) writes: > > I just that the Commodore 64 has a Dhrystone rating of 36. >Has anyone run the dhrystone test on a CoCo? I'd be interested to >see what the result is. We'd better beat the 64! > >Jeff Sparkes >jeff1@garfield.UUCP >jeff1@garfield.mun.cdn <- CDNnet The following is the output from the "dhrystone" benchmark compiled with MW C on a 64K CoCo, OS-9 Level I version 1.01.00. Note that: 1) I modified the source to do only 25000 passes. This halves the time for the slower-than-a-Cray CoCo, but obviously has minimal effect on the accuracy of the important result, the dhrystones/second figure. 2) I used the OS-9 getime() system call. It was accurate to within one second of my stopwatch. (No, my CoCo does NOT have a clock card.) The output from the dhrystone benchmark WITH registers: Dhrystone time for 25000 passes = 238 This machine benchmarks at 105 dhrystones/second The output from the dhrystone benchmark WITHOUT registers: Dhrystone time for 25000 passes = 234 This machine benchmarks at 106 dhrystones/second