Dean Kent wrote:
>I find it hard to believe
>that IBM would spend the money for mainframe
>processors to keep pace when there isn't really
>much of an incentive to do so.

Why is it hard to believe that IBM would invest huge sums in a fast growing
market with significant demand elasticity?  That's logical and rational
business behavior.

Ted MacNEIL wrote:
>Proof, please!

That's a strange request. You'd think the person making the extraordinary
claim that emulation offers higher performance than non-emulation would be
the one challenged to prove such a claim. But OK....

Phil Payne did an analysis of MIPS performance via emulation, and it's
quite easy to find his comments online.  Whether you agree or disagree with
him, he provides some numbers at which to throw darts.  In his analysis he
asserts that 4 Itanium processors, combined, just might manage 170 zMIPS,
to be generous.  For comparison, that figure is lower than the smallest
original (non-turbo) z900 processor (2064 Model 101) that shipped nearly 7
years ago.

Tom Marchant writes:
>I was disputing the statement that an Itanium
>can emulate instructions faster than z silicon.

Listen to Tom Marchant, for he is smart here.

Tom Marchant also writes:
>Actually, IBM is an acknowledged leader in processor design and
>microelectronics technology.

Smart again. :-)

- - - - -
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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