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Document with target values for performance statistics

Paul Baumgartel EXPERT RESPONSE FROM: Paul Baumgartel

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QUESTION POSED ON: 05 October 2005
I am an instructor at a community college in Florida. We are teaching an "Oracle Database Performance Tuning" class. I am trying to locate one document that can be referenced with all of the target values for performance statistics. Do you know of one such document? I have been using the Oracle online documentation. However the information seems to be scattered throughout multiple manuals. For example, we are discussing tuning the PGA for "shared server" mode. I cannot find information on the preferred settings for the different work areas (for shared server mode).

Thanks for your help!


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EXPERT RESPONSE
The best place to start is the Performance Tuning Guide. The Oracle 10g version (you didn't give your Oracle version, so this may not be completely applicable to your situation) contains detailed instructions on how to size the PGA and the large pool, which contains most of the PGA in shared server configurations. You can use the PGA advice feature of 9i or 10g to arrive at an appropriate value for PGA_AGGREGATE_TARGET and then ensure that your large pool is adequately sized to accommodate the PGA for shared server.


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