Book Image

F# High Performance

By : Eriawan Kusumawardhono
Book Image

F# High Performance

By: Eriawan Kusumawardhono

Overview of this book

F# is a functional programming language and is used in enterprise applications that demand high performance. It has its own unique trait: it is a functional programming language and has OOP support at the same time. This book will help you make F# applications run faster with examples you can easily break down and take into your own work. You will be able to assess the performance of the program and identify bottlenecks. Beginning with a gentle overview of concurrency features in F#, you will get to know the advanced topics of concurrency optimizations in F#, such as F# message passing agent of MailboxProcessor and further interoperation with .NET TPL. Based on this knowledge, you will be able to enhance the performance optimizations when implementing and using other F# language features. The book also covers optimization techniques by using F# best practices and F# libraries. You will learn how the concepts of concurrency and parallel programming will help in improving the performance. With this, you would be able to take advantage of multi-core processors and track memory leaks, root causes, and CPU issues. Finally, you will be able to test their applications to achieve scalability.
Table of Contents (15 chapters)
F# High Performance
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Identifying blocking threads


A thread, from the perspective of interactions with other threads, is divided into two kinds: non-blocking thread and blocking thread. A non-blocking thread is usually a thread that does not block any other thread.

A blocking thread means a thread that does operations that often force the execution context to wait for other operations. By nature, in this context of operations, there can be many kinds of operations and interactions with other kinds of subsystem components such as I/O and CPU thread counter such as the operation performed in System.Threading.Thread.Sleep.

Overview of the background technical reasons for the blocking nature of I/O

I/O is never separated from the implementation and usage of our application, especially applications that deal with networking and sending commands to an output device outside the scope of the subsystem, such as printers. It is often ignored, but it is becoming relevant that as a running application is expected to be as responsive...