Database Tuning (MOSC)

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After upgrade from 11.2.0.3 to 11.2.0.4, creating indexes and gathering stats is taking more time an

edited Jan 27, 2016 10:02AM in Database Tuning (MOSC) 3 commentsAnswered

Table is around 70GB - not partitioned.

In the previous version it is able to create indexes against that table in an acceptable time frame but after the upgrade new indexes (even if we recreate old indexes) its now taking more time. Upon checking OEM and AWR its now also taking much I/O.

The SGA and db_cache_size have been increased significantly (60gb and 40gb respectively) but still there is high IO utilization.

Is there something new in how 11.2.0.4 handles/ages data in the buffer cache?

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