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100% CPU Used When Memory Advisor tab in Enterprise Manager is Selected (Doc ID 1321123.1)

Last updated on OCTOBER 23, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


When the Memory Advisor Tab in Enterprise Manager is selected, the operation seems to hang and it may take 100% CPU.

The query executed when the Memory Advisor Tab is selected is:-
SELECT   component ,
FROM v$sga_resize_ops
WHERE initial_size <> final_size
ORDER BY end_time;

When the same query is run from SQLPLUS it takes lot of time to execute and the process will take 100% CPU.



From 10g, the default value for OPTIMIZER_MODE parameter is ALL_ROWS


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