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by Craig Shallahamer Get the book here |
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Craig Shallahamer's Blog
The text below is an except from the book, Oracle Performance Firefighting, written by Craig Shallahamer of OraPub, Inc. Figures and tables are not included on this page, only their reference. To order the book in either print or PDF form, click here. ©2009, 2010 by Craig Shallahamer. This is copyrighted material. Please—Out of respect for those involved in the creation of the book and also for their familes, we ask you to respect the copyright both in intent and deed. Thank you. ------------------------------- There are times when the combination of shared pool size, Oracle release (pre-Oracle 9i), and application usage will leave the DBA with no choice but to plan periodic shared pool flushes. That is simply the reality of the situation. As the following code snippet shows, flushing the shared pool is very simple, yet the effect is indeed significant. One of the easiest, most powerful, and most appropriate shared pool latching solutions is to simply add subpools, which will also add shared pool latches. The process is detailed in the earlier "From Hashing to Subpools" section. Please—Out of respect for those involved in the creation of the book and also for their familes, we ask you to respect the copyright both in intent and deed. Thank you. |
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