Book Image

Mastering C# Concurrency

Book Image

Mastering C# Concurrency

Overview of this book

Starting with the traditional approach to concurrency, you will learn how to write multithreaded concurrent programs and compose ways that won't require locking. You will explore the concepts of parallelism granularity, and fine-grained and coarse-grained parallel tasks by choosing a concurrent program structure and parallelizing the workload optimally. You will also learn how to use task parallel library, cancellations, timeouts, and how to handle errors. You will know how to choose the appropriate data structure for a specific parallel algorithm to achieve scalability and performance. Further, you'll learn about server scalability, asynchronous I/O, and thread pools, and write responsive traditional Windows and Windows Store applications. By the end of the book, you will be able to diagnose and resolve typical problems that could happen in multithreaded applications.
Table of Contents (17 chapters)
Mastering C# Concurrency
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Performance issues


So far, we have only observed problems related to multithreaded access to the UI controls. By default, the C# await statement will use the current synchronization and execution contexts and post the continuation code to the appropriate environment. Is there any use for the ConfigureAwait method? Why should we ever try to change the default behavior? To answer this question, consider the following application. This time we will review the whole code including the one that assembles the application:

private static Label _label;

[STAThread]
static void Main(string[] args)
{
  var app = new Application();
  var win = new Window();
  var panel = new StackPanel();
  var button = new Button();
  _label = new Label();
  _label.FontSize = 32;
  _label.Height = 200;
  button.Height = 100;
  button.FontSize = 32;
  button.Content = "Start asynchronous operations";
  button.Click += Click;
  panel.Children.Add(_label);
  panel.Children.Add(button);
  win.Content = panel;
  app.Run...