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Hi Muhammad,

I'd also recommend to test your queries on AS/400 using interactive sql
(strsql).
Before starting interactive sql session issue a strdbg command (start debug)
After you run your query use system request, option 3 to look at a job log.
You'll see a bunch of messages from AS/400 query engine.
Position cursor on a message and press F1 to get a recommendations on logical
files that needs to be used/created for your query to perform better.
Hope this helps,

Alex Pinsky
Aeropostale, Inc

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx]On Behalf Of Muhammad Owais
Sent: Wednesday, April 04, 2007 4:34 AM
To: java400-l@xxxxxxxxxxxx
Cc: java400-l-bounces@xxxxxxxxxxxx
Subject: Performance Issue


Hello;

I have migtated my EJB1.1 application from WebSphere 3.5 to WebSphere 5.1. When
I deployed the application on a PC based server that uses database from AS400,
it is very slow. Additionally before migration we have optimized the queries.
Moreover we have upgraded the RAM from 1GB to 4GB, expecting the performance
improvement. Queries execute fine on Windows based DB2 with 2GB of RAM but on
AS400 machine the same queries completes in a longer time. Furthermore we have
also altered the Machine, Base, Spool and Interactive memory.

Please guide me in optimizing the queries on AS400 DB.

Thanking you in anticipation.


With regards
Allah Hafiz

Muhammad Owais Bilal Awan,
+923002171163




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