When to use Task.Delay, when to use Thread.Sleep?

Question

Are there good rule(s) for when to use Task.Delay versus Thread.Sleep?

• Specifically, is there a minimum value to provide for one to be effective/efficient over

Answer 1

I want to add something. Actually, Task.Delay is a timer based wait mechanism. If you look at the source you would find a reference to a Timer class which is responsible for the delay. On the other hand Thread.Sleep actually makes current thread to sleep, that way you are just blocking and wasting one thread. In async programming model you should always use Task.Delay() if you want something(continuation) happen after some delay.