Recommendations for implementing IBM J9 JVM
You can review the recommedations for configuring your JVM.
In addition to the general recommendations in General JVM recommendations , you should configure the IBM® JVM as follows:
- Set JIT and MMI on (by default)
- Set PSALLOC=EARLY and NODISCLAIM=TRUE (IBM AIX® only)
- Set the JVM to use the Generational Concurrent Garbage Collector (-Xgcpolicy:gencon).