Increase In CPU Usage After Upgrade To 12C

(Doc ID 2397287.1)

Last updated on MAY 18, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
IBM: Linux on System z


 When the database was upgraded to, the performance degraded causing a CPU cost.  Some database background processes are consuming more CPU than before.

These are factors that needs to be checked that affects the CPU performance in this particular case.


 This occurs when the database was upgraded from to



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