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)

Benchmarking – validating your application against your SLA

Benchmarks often enter into play when you have a Service Level Agreement (SLA) to respect. The SLA can be more or less explicit. Typically, you may have a very blurry definition of your SLA, such as the application must provide good user experience, or you may have them in a very precise manner in a contract, such as the application must support Black Friday weekend and 10 million users a day, and each user action must be executed in less than one second. There are even some standards to describe the SLA, such as the Web Service Level Agreement (WSLA) to define how to measure and expose your SLA.

In any case, if an SLA is identified, and even more so if you have some compensation in your contract if it is not met, it is very important to go through a benchmark phase in your project to make sure you increase your...