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RE: 9i Parsing Optimization

From: Polarski, Bernard <Bernard.Polarski_at_atosorigin.com>
Date: Thu, 31 Aug 2006 11:36:35 +0200
Message-ID: <25D4919915CCF742A88EE3366D6D913D0D463EC4@mailserver1>


In the upgrade process, did you changed 'session_cached_cursors' from 0 (default in 8i) to something like 50+?
In this case your hits are much better and there is less pression on the shared pool, hence your parsing decrease also.


From: Allen, Brandon [mailto:Brandon.Allen_at_OneNeck.com]

optimizer_max_permutations would only reduce the time spent on parsing, not the number of parses. In the original post, the parse "count" was reduced from 120 to 60. Seems to me like maybe it was some sort of pl/sql optimization that kept the cursor open so it didn't have to be reparsed?


        From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Anjo Kolk         

        Without seeing the statement, I would say max_permutations.

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Received on Thu Aug 31 2006 - 04:36:35 CDT

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