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

Overview and best practices of types in F#


To store a value as data, every value needs to have a type, especially for static typed languages such as F#, C#, and VB. Many modern programming languages after the year 2000 put emphasis on types as the type of value of the data, instead of using the simple term of data structure. The types here also mean the types that are not just concrete types, but also generic types when used in conjunction with concrete types.

Static typing versus dynamic typing

F# by default has no built-in support for defining and optimizing types to store data as dynamic types on top of Dynamic Language Runtime (DLR). This dynamic type support is available in the form of a library from the F# FSSF open source project communities, the FSharp.Interop.Dynamic. This is available at https://github.com/fsprojects/FSharp.Interop.Dynamic.

This library is also available as a NuGet package as well.

DLR is basically an extension that runs on top of CLR to provide an infrastructure for...