Hi list.
Some of out vendors are using Gartner MIPS Rating as the base for software
costs calculations.
I have noticed that prior to Z196 MIPS Ratings the Gartner MIPS number
significantly differed from
IBM's LSPR / Sherill Watson CPU Charts (which is also based on the LSPR data).
On Z196 Garner changed their
calculation method to be based on the LSPR values.
When upgrading from a Z10 CPC to the equivalent z196 CPC the MIPS differences
between the CPC models is
bigger then actual based on the Gartner MIPS tables which result in a higher
software costs.
Gartner MSU's are based on IBM values.
For Example:
CPC IBM MIPS Gartner MIPS IBM&Gartner MSU's
2097-713 8809 8454 1076
2817-709 8943 8840 1091
=================================================
Diff 134 MIPS 386 MIPS 15 MSU
>From the Gartner Z196 MIPS rating table their is note regarding the
>calculation method change:
The base performance that IBM uses to come up with system performance
comparisons is the new
AVERAGE workload. Gartner will now look at the AVERAGE workload LSPR results as
the base of
our MIPS calculation.
1. Are you using Gartner or other method for calculating ISV Vendors software
costs ?
2. Are you aware to the change in the calculation method and how your
organization deals with it?
The MIPS difference can result in a major difference in the software costs?
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