Book Image

Improving your C# Skills

By : Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens
Book Image

Improving your C# Skills

By: Ovais Mehboob Ahmed Khan, John Callaway, Clayton Hunt, Rod Stephens

Overview of this book

This Learning Path shows you how to create high performing applications and solve programming challenges using a wide range of C# features. You’ll begin by learning how to identify the bottlenecks in writing programs, highlight common performance pitfalls, and apply strategies to detect and resolve these issues early. You'll also study the importance of micro-services architecture for building fast applications and implementing resiliency and security in .NET Core. Then, you'll study the importance of defining and testing boundaries, abstracting away third-party code, and working with different types of test double, such as spies, mocks, and fakes. In addition to describing programming trade-offs, this Learning Path will also help you build a useful toolkit of techniques, including value caching, statistical analysis, and geometric algorithms. This Learning Path includes content from the following Packt products: • C# 7 and .NET Core 2.0 High Performance by Ovais Mehboob Ahmed Khan • Practical Test-Driven Development using C# 7 by John Callaway, Clayton Hunt • The Modern C# Challenge by Rod Stephens
Table of Contents (26 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
8
What to Know Before Getting Started
17
Files and Directories
18
Advanced C# and .NET Features
Index

Multithreading versus asynchronous programming


Multithreading and asynchronous programming, if properly implemented, improve the performance of an application. Multithreading refers to the practice of executing multiple threads at the same time to execute multiple operations or tasks in parallel. There could be one main thread and several background threads, usually known as worker threads, running in parallel at the same time, executing multiple tasks concurrently, whereas both synchronous and asynchronous operations can run on a single-threaded or a multithreaded environment.

In a single-threaded synchronous operation, there is only one thread that performs all the tasks in a defined sequence, and it executes them one after the other. In a single-threaded asynchronous operation, there is only one thread that executes the tasks, but it allocates a time slice in which to run each task. When the time slice is over, it saves the state of that task and starts executing the next one. Internally...