JVM Tutorials - Herong's Tutorial Examples - Version 4.23, by Dr. Herong Yang

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 1.7.0_45 version of Sun HotSpot Client and Server VMs have larger footprints of 288,072 bytes and 577,008 bytes.
• JDK 1.6.0_02 version of Sun HotSpot Client and Server VMs have a smaller footprint of 180256 bytes.

Table of Contents

 About This Book

 Downloading and Installing JDK 1.8.0 on Windows

 Downloading and Installing JDK 1.7.0 on Windows

 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 28.2.7 by Oracle Corporation

 JVM Runtime Data Areas

 Memory Management and Garbage Collectors

 Garbage Collection Tests

 JVM Stack, Frame and Stack Overflow

 Thread Testing Program and Result

 CPU Impact of Multi-Thread Applications

 I/O Impact of Multi-Thread Applications

 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

 Outdated Tutorials

 References

 PDF Printing Version

Sun's JVM - Java HotSpot VM - Updated in 2017, by Dr. Herong Yang