In this lesson, 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 be achieved by adopting the concept of reactive programming, which we presented as the strong contender among most...
Java: High-Performance Apps with Java 9
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Java: High-Performance Apps with Java 9
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Overview of this book
Java 9 which is one of the most popular application development languages. The latest released version Java 9 comes with a host of new features and new APIs with lots of ready to use components to build efficient and scalable applications. Streams, parallel and asynchronous processing, multithreading, JSON support, reactive programming, and microservices comprise the hallmark of modern programming and are now fully integrated into the JDK.
This book focuses on providing quick, practical solutions to enhance your application's performance. You will explore the new features, APIs, and various tools added in Java 9 that help to speed up the development process. You will learn about jshell, Ahead-of-Time (AOT) compilation, and the basic threads related topics including sizing and synchronization. You will also explore various strategies for building microservices including container-less, self-contained, and in-container.
This book is ideal for developers who would like to build reliable and high-performance applications with Java.
This book is embedded with useful assessments that will help you revise the concepts you have learned in this book. This book is repurposed for this specific learning experience from material from Packt's Java 9 High Performance by Mayur Ramgir and Nick Samoylov
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Current Title:
Java: High-Performance Apps with Java 9
Table of Contents (9 chapters)
Java: High-Performance Apps with Java 9
Credits
Preface
Free Chapter
Learning Java 9 Underlying Performance Improvements
Tools for Higher Productivity and Faster Application
Multithreading and Reactive Programming
Microservices
Making Use of New APIs to Improve Your Code
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