This IBM Redbooks publication provides tips, techniques, and methodologies for working with Java and WebSphere Application Server performance-related issues with a specific focus on iSeries servers. The intended audience includes iSeries system performance experts and WebSphere Application Server and Java developers. This book attempts to provide you with a comprehensive and accessible resource that has gathered information usually found in a number of disparate sources and placed them in a single reference.

The performance measurements that are published in this book are done by using a Java application that runs on WebSphere Application Server Release 3.5.4 and 4.0 and OS/400 V5R1. This book includes these topics:

- An introduction to the Java and WebSphere Application Server execution environment on the iSeries

- OS/400 work management and tuning in Java/WebSphere Application Server environment

- Tuning WebSphere Application Server and Web server (HTTP server)

- Performance tips for application development and deployment

- Sizing and capacity planning

- Recommended tools to use for performance analysis and planning

- A case study that shows an example of performance management methodology and tuning

Chapter 1. Introduction

Chapter 2. The Java execution environment on iSeries servers

Chapter 3. Performance methodology and tools

Chapter 4. Tuning iSeries for a WebSphere or Java environment

Chapter 5. Tuning HTTP server and WebSphere Application Server

Chapter 6. Java and WebSphere application design

Chapter 7. Case study

Chapter 8. Scaling the WebSphere environment

Chapter 9. Sizing and capacity planning