Re: Need better WebSphere Application Server Performance for -- MIDRANGE-L

Dave,

I've just barely scratched surface with Websphere, but these Redbooks mayprovide help.

http://www.redbooks.ibm.com/abstracts/sg246256.html?Open
http://www.redbooks.ibm.com/abstracts/sg246417.html?Open
http://www.redbooks.ibm.com/abstracts/tips0244.html?Open

You mentioned Websphere was installed "by the book" - which may be a basicinstallwith no attempt to tune either the iSeries or Websphere. There are nooptions in the install of the base product as to environment tuning for theinstallers to do (that i know of).Also, your comparison of the Windows to i5 performance - if the windowsenvironment is doing little else except this, and your i5 is doing otherprocessing, then you must tune your i5 for this workload - and that is moreof an i5 work management problem, not a websphere setup problem.It is hard for anyone to offer specific tips without knowing the specificsetup.Is this (websphere) Express, or App Server, or Network Deployment, or NDplus Extended Deploy?6.0 or 6.1 ? with latest correct group ptf applied? plus additional stepusing update installer?

Latest group ptf for java, hipers, db2 installed? what cume level?
How many app servers are configured & running?  Which plug-ins?
Memory & pool allocations for the QWAS?? subsystem?
i5 model?  # processors?  cpw? cache?
And what else is running on this i5?
hth
jim franz

----- Original Message -----From: "Dave Odom" <Dave.Odom@xxxxxxxxxxxx>

To: <midrange-l@xxxxxxxxxxxx>
Sent: Wednesday, November 15, 2006 1:07 PM
Subject: RE: Need better WebSphere Application Server Performance for

Walden, John, Shalom, et al,

Thanks to all for your assistance and keep the suggestions coming...
To answer your questions:

Yes, all three "O" products are using the same i5 DB2 database and
table (singular at this point), a simple SELECT of all columns so
nothing remotely fancy.

As to a missing index... first, how come the Windows version of the "O"
product screams and the WebSphere version/installations don't.   Second,
until and unless I can get the place to go for putting copies of all
tables frequently queried in an Operational Data Store or Data Mart or
Data Warehouse where they can be tuned with indexes that support common
queries,  I'm stuck with the table and index design of the vendor that
created the packaged applications used most by the business.

I'll look again for any "O" vendor recommended setups for memory,
processor, memory pools, JVM settings, etc.  From what I know, the
systems programmers that installed WebSphere in all instances and the
"O" product installations went by the books of both products.  I'll
recheck.

Shalom... you asked "Do the was installations work with a server JDBC
resource?"   I don't understand your question.  What's a server JDBC
resource?   The WAS installs were done according to the documentation on
the WAS product as far as I know.   Now it may be that some pieces of
the WAS install can be segregated so they get better memory and
processor power and that may be easier for a WAS Windoz install but I'd
really like to improve the WAS i5 install because I'd like to stay off
Windoz as much as possible.

John Jones... Your recommendations were most detailed and oriented to
an i5.  Super!!  I'll investigate.

Thanks again,

Dave Odom
Arizona





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