About this task
Step 7 towards the goal:
Implementing EJB 2.x applications
Procedure
If you use applications that affect the size of the
EJB container cache, it is possible that the performance of your applications
can be impacted by an incorrect size setting. Container managed persistence
(CMP) is discussed in this topic, although it is important to know
that entity beans are not supported in an EJB 3.x module. One of the
steps in tuning your EJB container to optimum performance levels is
to fine-tune the EJB cache.