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)

Continuous Performance Evaluation

We saw in the previous chapter that driving a benchmark requires work and is not a small operation. However, it doesn't solve all the needs of software development, since you only do it from time to time. Moreover, between two benchmarks, you can have huge performance regression not captured by the unit tests validating the features and behavior of your application.

To solve that, it is a good idea to try to add dedicated tests for performance. This is what this chapter is about. Thus, we will learn:

  • Which tools you can use to test the performance
  • How you can set up some continuous integration for performance
  • How to write tests for the performance in such a context