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Asri-unix.1182 net.works utzoo!decvax!cca!sri-unix!sdcsvax!jvz@NPRDC Wed Apr 7 13:11:23 1982 Performance measurements

In the discussion of performance measurements, it was mentioned that the VAX-780 was analyzed as a 0.5MIP machine (by Doug Clark). How does a MIP relate to my compiling a Fortran program or interacting with a DBMS? And what is a MIP? If we are going to compare machines and architectures, we need to be more specific. The one thing lacking in the analysis of machines today is a standard reference point and definition of work (as opposed to MIP). The measurement should be the number of functions performed per unit time, where "number of functions" has some rational base. And note, the "functions" might be different depending upon the environment of the user.

John Van Zandt UCSD uucp: ucbvax!sdcsvax!jvz arpa: sdcsvax!jvz@nprdc

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