Re: CPU Percentage Flex, Lies, and Usage Measuring Tape

["Al Barsa, Jr." <barsa2@xxxxxxx>]

At 11:18 PM 7/27/97 -0400, you wrote:
>Now it's my turn to ask a couple of questions.  Since our upgrade to 3.7
>(production) and 3.2 (development system), jobs no longer seem to get the CPU
>that they deserve when running independently of the users.  Case in point,
>I'm running our BPCS shop order purge this weekend which removes data from
>approximately 23 files.  Prior to our upgrade from 3.1, this job (and
>rightfully so) consumed about 80% of available CPU at normal batch processing
>priority on our production 320.  This weekend, I'm running the purge on both
>our new production 530 (3.7) and our newly annointed development 320 (3.2).
> Despite my upping both jobs to priority 10, setting purge for both to *NO,
>and setting both timeslices to 100,000, neither is consuming more than 18%
>CPU with nobody else on the systems.

If you are on a RISC system, and have the system value QDYNPTYSCD set to
'1', the default, the system essentially ignores the priorities you set,
and uses it's own.  PS:  It lies to you as to what's it's done, giving back
the priorities you set!
>
>Secondly, I heard a NASTY rumor that clouds my former anticipation of IBM's
>August announcements.  In addition to the 12-way processor, I also hear that
>IBM is dropping user-based pricing (which helped the AS/400 get as big as it
>is) in favor of returning exclusively to tier-based pricing.  Anyone have
>information on this?
>
For all practical purposes, IBM withdrew user based pricing years ago!
First of all, it was never enforced, and secondly it was withdrawn on the
biggest hitter products long ago.  Although user based pricing is was we
(the user community) asked IBM for, it was exactly what we asked for, and
it probably was a mistake.  I think before we pass jusgement on IBM, we
need to see the new model structure, and how it lays on top of the tier
structure.

Al



Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

Phone:  914-251-9400
Fax:    914-251-9406





Private mail should be sent to barsa@ibm.net
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