V5R4 performance issue -- MIDRANGE-L

Subject: V5R4 performance issue
From: Troy Foster <tfoster@xxxxxxxxxx>
Date: Fri, 24 Sep 2010 10:23:50 -0500
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There is a problem on V5R4 with PTF's not being decompressed after being downloaded. and QWVRCSTK being called in a database trigger. It slowed down our system by a factor of 4 to 5 times slower. A firm in Germany had their system go from 2 second to 2 minute response times. The cause was IBM was no decompressing the programs after the programs were used. Had to Decompress IBM programs. IBM is going to put out a APAR SE45018 which will provide a PTF to ensure compressed programs observable information is decompressed permanently the first time the API is called

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