R12 performance issues
I need some suggestion on the severe performance issue we are facing after upgrading from 11i to R12. After lot of analysis, we found the performance of custom code/queries is very erratic. Sometimes it would run okay, but sometimes it would run really really slow. We are thinking of pinning the custom packages and associated standard tables ( like OE_ORDER_LINES ) to memory to improve the performance. Did anyone of you face similar issue after R12 upgrade and do you think pinning object is the correct method to improve performance. Any help or suggestion is appreciated.
We upgraded from 11.5.10.2 ( DB 10.2.0.4 ) to R12.1.3 ( DB 11.2.0.3 ).