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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

Tuning


Once a working benchmark is in place in your test infrastructure, be it a version of an application that can be run in a controlled environment or a subset of the algorithmic problem that an application tries to solve, regression testing can be performed. This ensures that no performance is lost during future code alterations.

Another purpose of the benchmark is to provide a small self-contained sandbox that can be used to tune the runtime environment in order to provide optimal performance for that particular application and to make sure that performance goals set for the software project are reached.

Whereas, in some cases, it may be obvious from benchmarking that parts of an application need to be rewritten using more efficient algorithms, sometimes it may just be enough to provide a more optimal runtime environment by tuning the JVM parameters.

Out of the box behavior

The previous three chapters on code generation, memory management, and threads and synchronization have all, quite...

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