Book Image

Clojure High Performance Programming

By : Shantanu Kumar
Book Image

Clojure High Performance Programming

By: Shantanu Kumar

Overview of this book

<p>Clojure is a young, dynamic, functional programming language that runs on the Java Virtual Machine. It is built with performance, pragmatism, and simplicity in mind. Like most general purpose languages, Clojure’s features have different performance characteristics that one should know in order to write high performance code.<br /><br />Clojure High Performance Programming is a practical, to-the-point guide that shows you how to evaluate the performance implications of different Clojure abstractions, learn about their underpinnings, and apply the right approach for optimum performance in real-world programs.<br /><br />This book discusses the Clojure language in the light of performance factors that you can exploit in your own code.</p> <p>You will also learn about hardware and JVM internals that also impact Clojure’s performance. Key features include performance vocabulary, performance analysis, optimization techniques, and how to apply these to your programs. You will also find detailed information on Clojure's concurrency, state-management, and parallelization primitives.</p> <p>This book is your key to writing high performance Clojure code using the right abstraction, in the right place, using the right technique.</p>
Table of Contents (15 chapters)
Clojure High Performance Programming
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Index

Summary


Clojure has strong Java interoperability and underpinning, and due to which, programmers can leverage the performance benefits nearing Java. For performance-critical code, sometimes it is necessary to know how Clojure interacts with Java and how to turn the right knobs. Numerics is a key area where Java interoperability is required to get optimum performance. Type hinting is another important performance trick that is frequently useful. There are several open source Clojure libraries that make such activities easier for the programmer.

In the next chapter, we will dig deeper below Java and see how the hardware and the JVM stack play a key role to offer the performance we get, what their constraints are, and how to use the understanding to get better performance.