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Java iSeries Performance Optimization for e.g. XI and EP

In Java environments special VM & other system settings need to be applied in all operating systems in order to gain the best performance.

For SAP on System i enviroments this is described the following locations:

• Note 717376 - Recommended (VM) Settings for SAP WebAS Java
  
  
• IBM - SAP J2EE Tuning Website
  
  

The information above is somewhat a duplicate, but in general VERY helpful and both pretty up to date with state of the art.