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*To*: wlim@gdstech.grumman.com (Willie Lim)*Subject*: Re: MIPS rate (a resend)*From*: moon@cambridge.apple.com (David A. Moon)*Date*: Tue, 24 Sep 1991 11:11:28 -0400*Cc*: slug@ai.sri.com, info-ti-explorer@sumex-aim.stanford.edu

Raw MIPS numbers don't mean much when comparing machines with very different architectures, you need to compare performance on applications that interest you. Use Gabriel benchmark figures, and multiply by whatever Gabriel-to-MIPS conversion factor you feel produces the results you want. For instance if an authoritative source has told you that machine X is a 7.5 MIPS machine, and the geometric mean of the time for the half dozen principal Gabriels on machine X is 4.1, then use a conversion factor of (/ 7.5 (/ 1 4.1)) = 30.75. If machine Y does the Gabriels in 3.5 seconds, it's a (/ 30.75 3.5) = 8.8 MIPS machine. I am sure there are other methods of calculation which will produce wildly different results. Don't use the 30.75 conversion factor I quoted above, I made it up out of air and smoke. Calibrate it yourself.

**Follow-Ups**:**Re: MIPS rate (a resend)***From:*Reti@STONY-BROOK.SCRC.Symbolics.COM (Kalman Reti)

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