Re: Performance Manager (V3R2)

[DAsmussen <DAsmussen@xxxxxxx>]

Neil,

In a message dated 98-01-09 15:08:56 EST, you write:

> Performance TOOLS and Performance MANAGER are two totally different
>  products.

I know, I should have qualified my comment to the product in question.  My
mistake.

>  And regarding your comment about QPFRADJ and 9406's - these days ALL new
>  systems (except the 9401 150's) are 9406's - even the smallest model
>  600.

Well, there's what happens when you don't sell systems anymore ;-).  For a
while, IBM still differentiated the 3xx systems between 9404 and 9406, which I
never understood.  Guess someone at IBM didn't either...

>  I think a lot of people formed their opinions of QPFRADJ back when it
>  WAS really slow to react.  Over the past several releases some major
>  changes to the algorithms have been made and it now reacts MUCH faster.
>  It may be another one of those things that you should revisit and not
>  just base judgement on how it used to work in the past.

You can get me on the 9404/9406 issue, but the reaction time for auto-tune
_STILL_ "bites the big one".  After every hardware upgrade, our IBM rep sets
the value to auto-tune "for a few days, just to adjust".  Unfortunately,
he/she never comes back to turn it off so it gets turned off when all of us
_SCREAM_ about system performance.  This is on both a V3R7 and V3R2 machine,
so "past several releases" are _NOT_ valid in this case.  Auto-adjust _STILL_
bites, and I still cannot imagine using it on a system with more than 10
terminals...

JMHO,

Dean Asmussen
Enterprise Systems Consulting, Inc.
Fuquay-Varina, NC  USA
E-Mail:  DAsmussen@aol.com

"We are what we repeatedly do.  Excellence, then, is not an act, but a habit."
-- Aristotle
root
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