Solution : https://service.sap.com/sap/support/notes/1854524 (SAP Service marketplace login required)
Key words :
low level memory management performance issue, keeping shared segment aliasing turned, 1 tb unshared segment aliasing, large segment aliasing [id 1467807, apply ibm apar iv23851, symptom oracle database version >=11, customers running oracle database 11, unshared segment aliasing, customers aix level, - disable unshared aliases
Related Notes :
| 618868 | FAQ: Oracle performance |