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ORACLE Database running slow on AIX ( nmon / topas )

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Operating Systems AIX ORACLE Database running slow on AIX ( nmon / topas )
# 1  
Old 11-11-2010
The SGA is OVERsized ...
as well as the db_cache_size which is told not to decrease below 32G whereas it seems 75328 x 8192 ~ 620M are currently enough ...
Last edited by ctsgnb; 11-11-2010 at 09:09 AM..
These 2 Users Gave Thanks to ctsgnb For This Post:
methyl zxmaus
# 2  
Old 11-11-2010
Any chance of seeing the initSID.ora file ?
I agree that say 24 Gb total SGA (25% of memory) would be generous unless this database has a history of ORA errors with "normal" values.
An excessively large db_cache_size can itself cause performance issues on databases with a high rate of data change.
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