Oracle instance activity repartition

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Cyrille Modiano

OCP Oracle DBA in Montreal at DBSoft


This query will show you repartition percentage between I/O, WAITS and CPU from the v$active_session_history view
Be careful, this view is part of the diagnostic pack, you should not query this view if you don’t have license for it.

Instance activity repartition

This query returns percentage of I/O, CPU and waits consumed by the instance for the total time covered by v$active_session_history. You can specify a time interval by adding a clause in the subquery specifying a range for sample_time.

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