Book Image

Oracle JRockit: The Definitive Guide

Book Image

Oracle JRockit: The Definitive Guide

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)
Oracle JRockit
Credits
Foreword
About the Authors
Acknowledgement
About the Reviewers
Preface
12
Using the JRockit Management APIs
Bibliography
Glossary
AST
CAS
HIR
IR
JFR
JMX
JRA
JSR
LIR
MD5
MIR
PDE
RCP
SWT
TLA
Index

Summary


In this chapter, we have shown how to use the JRockit Mission Control Memory Leak Detector to detect and find the root cause for Java memory leaks. We have also discussed the advantages and disadvantages of the Memory Leak Detector in various use cases.

It has been demonstrated how the Memory Leak Detector can be used to detect even quite slow memory leaks. We have also shown how the Memory Leak Detector can be used in an interactive manner to quickly test particular operations in an application that may be prone to memory leaks.

We have explained how the Memory Leak Detector can also be used as an interactive general purpose heap analyzer to both find relationships between different types on the heap, as well as for inspecting the contents of any instance on the heap.

Finally, we showed how to troubleshoot the most common problems associated with using the tool.