In this chapter, we have discussed the ways to improve Java application performance by using multithreading. We described how to decrease an overhead of creating the threads using thread pools and various types of such pools suited for different processing requirements. We also brought up the considerations used for selecting the pool size and how to synchronize threads so that they do not interfere with each other and yield the best performance results. We pointed out that every decision on the performance improvements has to be made and tested through direct monitoring of the application, and we discussed the possible options for such monitoring programmatically and using various external tools. The final step, the JVM tuning, can be done via Java tool flags that we listed and commented in the corresponding section. Yet more gains in Java application performance might...
Java 9 High Performance
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Java 9 High Performance
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Overview of this book
Finally, a book that focuses on the practicalities rather than theory of Java application performance tuning. This book will be your one-stop guide to optimize the performance of your Java applications.
We will begin by understanding the new features and APIs of Java 9. You will then be taught the practicalities of Java application performance tuning, how to make the best use of garbage collector, and find out how to optimize code with microbenchmarking. Moving ahead, you will be introduced to multithreading and learning about concurrent programming with Java 9 to build highly concurrent and efficient applications. You will learn how to fine tune your Java code for best results. You will discover techniques on how to benchmark performance and reduce various bottlenecks in your applications. We'll also cover best practices of Java programming that will help you improve the quality of your codebase.
By the end of the book, you will be armed with the knowledge to build and deploy efficient, scalable, and concurrent applications in Java.
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Current Title:
Java 9 High Performance
Table of Contents (11 chapters)
Free Chapter
Learning Java 9 Underlying Performance Improvements
Identifying Performance Bottlenecks
Learning How to Troubleshoot Code
Learning How to Use Profiling Tools
Understanding Garbage Collection and Making Use of It
Optimizing Code with Microbenchmarking
Speeding Up JSON Generation
Tools for Higher Productivity and Faster Application
Multithreading and Reactive Programming
Microservices
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