Book Image

Java EE 8 High Performance

By : Romain Manni-Bucau
Book Image

Java EE 8 High Performance

By: Romain Manni-Bucau

Overview of this book

The ease with which we write applications has been increasing, but with this comes the need to address their performance. A balancing act between easily implementing complex applications and keeping their performance optimal is a present-day need. In this book, we explore how to achieve this crucial balance while developing and deploying applications with Java EE 8. The book starts by analyzing various Java EE specifications to identify those potentially affecting performance adversely. Then, we move on to monitoring techniques that enable us to identify performance bottlenecks and optimize performance metrics. Next, we look at techniques that help us achieve high performance: memory optimization, concurrency, multi-threading, scaling, and caching. We also look at fault tolerance solutions and the importance of logging. Lastly, you will learn to benchmark your application and also implement solutions for continuous performance evaluation. By the end of the book, you will have gained insights into various techniques and solutions that will help create high-performance applications in the Java EE 8 environment.
Table of Contents (12 chapters)

Application Optimization – Memory Management and Server Configuration

We now know how to get information about the performance of our application. From high-level execution time to deep container internals, we can determine which part of the code is slowing us down.

However, this is mainly about our code or stack (the Java EE container). There are other criteria that can influence the performance of the same machine (considering that the CPU and the memory are fixed).

In this chapter, we will investigate the following:

  • How JVM manages the memory and automatically releases unused objects
  • Compare different options to release the memory that JVM offers
  • See how the server configuration can also impact the performance