I/O Impact of Multi-Thread Applications

This chapter provides tutorial notes and example codes on I/O impact of multi-thread Java applications. Topics include I/O intensive thread test class, FileEditor2.java; running multiple I/O threads on HotSpot and JRockit JVM.


These sections are omitted from this Web preview version. To view the full content, see information on how to obtain the full version this book.

FileEditor.java - I/O Intensive Process

FileEditor.java - DK-4724038 JVM Bug

FileEditor2.java - Avoiding FileNotFoundException

MultithreadingIoRunner.java - Multiple I/O Threads

Performance of Multiple I/O Threads on HotSpot

Performance of Multiple I/O Threads on JRockit


Takeaways:

Table of Contents

 About This Book

 JVM (Java Virtual Machine) Specification

 Java HotSpot VM - JVM by Oracle/Sun

 java.lang.Runtime Class - The JVM Instance

 java.lang.System Class - The Operating System

 ClassLoader Class - Class Loaders

 Class Class - Class Reflections

 JVM Runtime Data Areas

 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

 OpenJ9 by Eclipse Foundation

 JRockit JVM 28.2.7 by Oracle Corporation

 Archived Tutorials

 References

 Full Version in PDF/EPUB