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  3. August 2003

SQL Performance in V5R2

One of the things listed in "What's new in V5R2" is a rewrite of the query
optimizer to improve SQL / query performance. We are upgrading soon, but
being asked now about things we can do to aid in CPU usage and user
experience. For those of you that have already gone to V5R2, has there been
a noticeable performance improvement? Our apps are VERY SQL intensive to
accommodate completely dynamic sorting and filtering, and while our system
performance is good (box and index tuning done and reviewed regularly) we
are always prodded by our hardware guys to see if we can't get a few more
RPMs out of the hamster wheel.

Any shared experience would certainly be appreciated.

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