JVM Tutorials - Herong's Tutorial Examples
Dr. Herong Yang, Version 4.10

CDS (Class Data Sharing)

This chapter provides tutorial notes and example codes on CDS (Class Data Sharing). Topics include generating shared archive with HotSpot; saving startup time and footprint using shared archive; viewing shared memory of JVM processes.

What Is Class Data Sharing?

Regenerating Shared Archive

Startup Time Saving with Restoring Shared Archive

Startup Time Saving with Multiple JVM Processes

Footprint Saving with Restoring Shared Archive

Viewing Shared Memory of JVM Processes

Table of Contents

 About This Book

 Download and Install Java SE 1.6 Update 2

 java.lang.Runtime Class - The JVM Instance

 java.lang.System Class - The Operating System

 ClassLoader Class - Class Loaders

 Class Class - Class Reflections

 Sun's JVM - Java HotSpot VM

 JRockit JVM 7.0 by BEA Systems

 JRockit JVM 8.0 by BEA Systems

 Memory Management Rules and Tests

 Garbage Collection Tests

 Stack Overflow Tests

 Thread Testing Program and Result

 StringBuffer Testing Program and Result

CDS (Class Data Sharing)

 Micro Benchmark Runner and JVM Options

 Micro Benchmark Tests on "int" Operations

 Micro Benchmark Tests on "long" Operations

 Micro Benchmark Tests in JIT Compilation Mode

 Micro Benchmark Tests on "float" and "double" Operations

 References

 PDF Printing Version

Dr. Herong Yang, updated in 2010
CDS (Class Data Sharing)