Monitoring WebSphere Application Performance on z/OS

A draft IBM Redbooks publication

Updated 20 June 2006

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IBM Form #: SG24-6825-01

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Authors: Patrick Ryan, G Michael Connolly, Phil Anselm, Charles Neidigh, Raymond Sun, Theresa Tai, Michael Weintraub


This IBM Redbooks publication was written for IBM zSeries users, performance analysts, system administrators and system engineers who need a comprehensive understanding of IBM WebSphere Application Server V5.1 on z/OS performance management in order to ensure the successful deployment of e-business applications.

This book specifically addresses WebSphere Application Server V5.1 for z/OS and a set of monitoring tools appropriate for that release, namely; OMEGAMON V130, WSAM V3.1 and TPV for V5.1.

Performance monitoring and system tuning in a production environment is a vast and complex topic. Hypes and claims of performance and scalability are confusing and often misleading. This book helps you understand WebSphere Application Server V5.1 on z/OS performance factors, and how you can monitor your system and application performance, response time, and resource utilization. It provides practical hints and tips on various real-life factors that influence the performance of applications in production on WebSphere Application Server V5.1 on z/OS.

The book provides a general introduction to WebSphere runtime and discusses the key performance factors in a z/OS production environment. Beyond general recommendations, we describe a performance troubleshooting approach.

Scenarios are used to explain how to narrow down to the source of the problem. Interpretation of data and rules of thumb are provided.

Table of contents

Part 1. Theory and methodology
Chapter 1. Theory of performance monitoring
Chapter 2. Methodology of performance monitoring
Part 2. Monitoring tools
Chapter 3. Basic tools
Chapter 4. WebSphere Application Server tools
Chapter 5. Additional tools
Part 3. Scenarios
Chapter 6. Overview of the scenarios
Chapter 7. Scenario 0: Baseline
Chapter 8. Scenario 1: Write to hierarchical file system file
Chapter 9. Scenario 2: Excessive objects
Chapter 10. Scenario 3: Serialization
Chapter 11. Scenario 4: Java virtual machine heap size
Chapter 12. Scenario 5: Increased volume
Chapter 13. Scenario 6: Memory leak
Appendix A. Monitoring environment
Appendix B. Testing environment

These pages are Web versions of IBM Redbooks- and Redpapers-in-progress. They are published here for those who need the information now and may contain spelling, layout and grammatical errors. This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. Your feedback is welcomed to improve the usefulness of the material to others.

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