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

Common pitfalls in implementing type provider


We now have enough knowledge of type provider, not just the concept of using a sample type provider and implementing a custom type provider but also that there might be pitfalls as well. In this section, the common pitfalls in type providers are wrapped as a simplified list with a simple explanation as well.

Common pitfalls in implementing type providers are quite subtle but these are important:

  • Type provider strategy has to be planned first. The planning must also include the infrastructure to ease the metadata generation, whether it employs erased or generative strategy. Do not always assume that we can always provide generative type providers instantly. Failing to provide type resolution with the namespace will yield undesirable results, including erased type metadata.

  • Reflection should use lazy implementation instead of an eager one. This lazy evaluation should not be combined with asynchronous reflection because cross-thread exception will...