The application server, being a Java process, requires a Java virtual machine (JVM) to run, and to support the Java applications running on it. As part of configuring an application server, you can fine-tune settings that enhance system use of the JVM.
This article introduces some of the important performance tuning issues for the IBM JVM for Linux on iSeries and pSeries. At the time of this writing, IBM provides JDK 1.3.1 32-bit and JDK 1.4.1, in both 32-bit and 64-bit flavors, for Linux on IBM iSeries