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  • Book Overview & Buying Oracle JRockit: The Definitive Guide
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Oracle JRockit: The Definitive Guide

Oracle JRockit: The Definitive Guide

4.8 (10)
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Oracle JRockit: The Definitive Guide

Oracle JRockit: The Definitive Guide

4.8 (10)

Overview of this book

Oracle JRockit is one of the industry’s highest performing Java Virtual Machines. Java developers are always on the lookout for better ways to analyze application behavior and gain performance. As we all know, this is not as easy as it looks. Welcome to JRockit: The Definitive Guide.This book helps you gain in-depth knowledge of Java from the JVM’s point of view. We will explain how to write code that works well with the JVM to gain performance and scalability. Starting with the inner workings of the JRockit JVM and finishing with a thorough walkthrough of the tools in the JRockit Mission Control suite, this book is for anyone who wants to know more about how the JVM executes your Java application and how to profile for better performance.
Table of Contents (23 chapters)
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Oracle JRockit
Credits
Foreword
About the Authors
Acknowledgement
About the Reviewers
Preface
12
Using the JRockit Management APIs
1
Bibliography
2
Glossary
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AST
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CAS
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HIR
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IR
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JFR
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JMX
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JRA
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JSR
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LIR
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MD5
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MIR
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PDE
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RCP
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SWT
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TLA
3
Index

Chapter 8. The Runtime Analyzer

The JRockit Runtime Analyzer, or JRA for short, is a JRockit-specific profiling tool that provides information about both the JRockit runtime and the application running in JRockit. JRA was the main profiling tool for JRockit R27 and earlier, but has been superseded in later versions by the JRockit Flight Recorder. Because of its extremely low overhead, JRA is suitable for use in production.

In this chapter you will learn:

  • Different ways to create a JRA recording

  • How to find the hot spots in your application

  • How to interpret memory-related information in JRA

  • How to hunt down latency-related problems

  • How to detect indications of a memory leak in an application

  • How to use the operative set in the JRA latency analyzer component

Note

This chapter is mainly targeted at R27.x/3.x versions of JRockit and Mission Control. The next chapter covers performing and analyzing runtime recordings in R28/4.0 using JRockit Flight Recorder. As several of the components for recording...

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