Visual Basic 2015 Unleashed

When and Why to Use Async/Await and Comparisons with the TPL

Using the Async pattern enables you to write applications that are more responsive and that perform better, but you will not use it everywhere. In fact, there are specific situations in which Async has benefits. As a general rule, Async’s main purpose is to keep the UI responsive while tasks running in the UI thread might become potentially blocking. You use Async in the following scenarios:

Potentially blocking tasks running in the user interface thread

Image processing

I/O operations ...