Solution : https://service.sap.com/sap/support/notes/78498 (SAP Service marketplace login required)
Key words : 
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Related Notes : 
       
| 973227 | AIX Virtual Memory Management: Tuning Recommendations | 
| 822896 | Increased Repaging Rates in AIX 5.2 and above with JFS2 | 
| 793113 | FAQ: Oracle I/O configuration | 
| 750205 | High memory usage with AIX5.2/5.3 and Oracle9.2 | 
| 103747 | Performance: Parameter recommendations as of Release 4.0 | 
| 97497 | Memory Management Parameter (3.0/3.1) | 
| 21960 | Several instances/systems on one UNIX computer |