Book Image

Java 9 High Performance

By : Mayur Ramgir, Nick Samoylov
Book Image

Java 9 High Performance

By: Mayur Ramgir, Nick Samoylov

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.
Table of Contents (11 chapters)

Introducing profiling

Now, let's understand profiling in a little more detail. In the context of software engineering and development, profiling is a form of dynamic program analysis that may be used as a means of measurement regarding certain parameters such as memory, CPU time, and so on.

Here, profiling may also be defined as the use of a specific set of instructions in a program, along with the length or the regularity of function calls. However, profiling is most often undertaken as an aid to the optimization of any computer software.

Profiling is typically conducted by a specific tool that is referred to as a profiler. This tool may utilize multiple methods based on either statistical simulation or even many event-based techniques to create such profiles.

Furthermore, profiling helps address the cumbersome task of having to perform memory management on its own. In most...