RE: BPCS Performance Problems -- BPCS-L

Normal response is 2 seconds or less.  Very acceptable.  The problem is the 
wrong sized box by SSA.  I was looking for what other SSA customers had run 
into.

Currently working with my local IBM branch (whom I trust) and in 
negotiations with SSA.

Thanks

-----Original Message-----
From:   David Shea [SMTP:dshea@arctools.com]
Sent:   Wednesday, February 17, 1999 8:07 AM
To:     BPCS-L@midrange.com; mitchell@nexgensoftware.com
Subject:        Re: BPCS Performance Problems

One of the biggest culprits of slow performance is the sheer volume of data
bogging down the system.  If you need to purge and/or archive some of your
data to speed things up, check out http://www.arctools.com .  We have a
purging and archiving tool set that BPCS shops are using to clean out some
of the excess.

The seven minute response time scenario is obviously unworkable.  If these
jobs are hogging 80% of the CPU, then it's probably not I/O bound, unless
it's creating logical views or opening query files, etc.

What is the load on the box in that situation?  What is the response time
during off peak times?  If it's still in the dreadfully unacceptable range,
I can't imagine that simply throwing more hardware at the problem is really
going to fix anything.  Is the program being handed an impossible task, or
is the architecture of the program a problem?

Good luck.

----Original Message-----
From: mitchell@nexgensoftware.com <mitchell@nexgensoftware.com>
To: BPCS-L@midrange.com <BPCS-L@midrange.com>
Date: Tuesday, February 16, 1999 5:35 PM
Subject: Re: BPCS Performance Problems


>
>
>
>Dwight,
>
>You wrote:
>
>|We are interested if anyone else has had the problem of receiving an
AS/400
>|mode with about 250 users spread across 6 sites.  The CFINTxx jobs will
>|consume upwards of 80% of the total CPU available and bring response 
times
>|up to the 7 minute range.  The AS/400 we were sized at originally is an
S20
>|model 2177 with 1GB of ram.  We are now being told be SSA that we need an
>|S20 model 2178 with 2.5 GB of ram.  Needless to say management is not
>|pleased about the additional $100,000 outlay of cash.  I am concerned
about
>|the new estimate (fool me once shame on you... fool me twice shame on 
me).
>|Your feedback is welcome.
>|
>|Regards,
>|
>|Dwight Slessman
>|National Electrical Carbon Products, Inc.
>
>Are you serious that SSA has sized you for a "server" AS/400 when you are
>running mixed-mode V6.X???
>
>Mixed-mode BPCS places its workload in the interactive subsystem.  The
server
>series AS/400s are designed NOT to run optimally (the 400 actually,
purposely
>de-tunes itself -- thus your CFINT jobs) with high interactive workloads.
>
>With 250 users, I can't see how anyone would have recommended an
S-anything.
>Although I am not advising you on the proper size machine for your 
purpose,
you
>will most likely need an interactive box such as a Model 620, 640.  And
yes,
>this will cost you dearly.
>
>Please feel free to call me if you want more details on this
>
>Best of Luck,
>
>Daniel J. Mitchell
>Nexgen
>+1 630 300 6040


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