SPECthruput

[Tom Horsley]

>>>>> Regarding Re: SPECthruput; croft at csusac.csus.edu (Steve Croft) adds:

croft> Is there really a SPEC benchmark called 'SPECthuput'?  I have seen this
croft> mark referred to in different manufacturers' literature.

Yep. They (SPEC that is) defined this is one of their newsletters a while
back. Basically it consists of running 2 copies of the regular SPEC suite at
the same time on each CPU in your system (so if you have a 4 CPU
multiprocessor, you would be running a total of 8 copes of SPEC).

You measure the wall time from the time the first copy starts to the time
the last copy finishes and use that figure to compute SPECthroughput in much
the same way you use wall time for a single copy to compute SPECmarks.

The numbers are supposed to be reported in the format 4 at 999.9 which means
you came up with a SPECthroughput number of 999.9 on a 4 CPU system.
(Before anyone asks, this is not a real number from some system I have seen).
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