JVM Tutorials - Herong's Tutorial Examples

∟Sun's JVM - Java HotSpot VM

This chapter provides tutorial notes and example codes on Sun Java HotSpot VM. Topics include running Java HotSpot VM in client and server modes; checking memory usage with the Runtime class.

What Is HotSpot?

Running Java HotSpot Client VM

Running Java HotSpot Server VM

VM Memory Usages on Windows Systems

Conclusions:

• Sun HotSpot VM has 2 modes: client mode and server mode.
• JDK 1.6.0_02 version of Sun HotSpot VM has a small footprint of 180256 bytes.

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