This session will discuss when to think about performance tuning your application, how to set performance goals, measure and then achieve those goals. It will cover all aspects of tuning from network level buffers to database concurrency to tuning of the JBoss Application Server. This session will also explain how memory is managed by the Java Virtual Machine (JVM) and how to go about tuning the JVM for you application. While the session includes examples of how to go about tuning for Linux, many of the principals will apply to all operating systems. Similarly, while examples of performance tuning the Sun JVM will be covered, these tips may also apply to other vendor's JVMs.