>This thread still begs the issue of benchmarking a representative
>business application across multilple platforms.

It may beg the issue, but the answer isn't (solely, or even much) a
"benchmark." Running a single payroll application (for example) doesn't cut
it either. These systems are built to run hundreds or even thousands of
applications with different profiles on one machine. (Are there benchmarks
like that?) How do you benchmark a 777 compared to a motor scooter? They
both move, they both carry people, but is any sort of simple comparison
possible? A single number doesn't help much.

The mainframe inevitably forces the question: "How do you measure the total
performance of the whole IT organization, in business terms?" That
paragraph I wrote in response to Dean gives some idea of the dimensionality
of that question. As mentioned, many outsourcing companies do a decent job
making such measurements. They have to because it dictates how they bid and
how much profit they can make.

IMHO, IT organizations which don't do a good job in this area -- which
focus way too much on SPECint :-) -- are the ripest candidates for
outsourcing as the company's CEO and CFO grow thoroughly disgusted with IT
mismanagement.

- - - - -
Timothy Sipples
IBM Consulting Enterprise Software Architect
Specializing in Software Architectures Related to System z
Based in Tokyo, Serving IBM Japan and IBM Asia-Pacific
E-Mail: [EMAIL PROTECTED]
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