“async Task then await Task” vs “Task then return task” [duplicate]

by

It is almost the same (in terms of threads etc.). But for the second one (using await) a lot more overhead will be created by the compiler.

Methods declared as async and using await are converted into a state machine by the compiler. So when you hit the await, the control flow is returned to the calling method and execution of your async method is resumed after the await when the awaited Task has finished.

As there is no more code after your await, there is no need to use await anyway. Simply return the Task is enough.

More Related Contents:

  1. If async-await doesn’t create any additional threads, then how does it make applications responsive?
  2. What is the difference between asynchronous programming and multithreading?
  3. Implement C# Generic Timeout
  4. How to protect resources that may be used in a multi-threaded or async environment?
  5. Async process start and wait for it to finish
  6. Benefits of using async and await keywords
  7. Named Mutex with await
  8. What thread runs the code after the `await` keyword?
  9. Calling async method on button click
  10. Calling async methods from non-async code
  11. Is .GetAwaiter().GetResult(); safe for general use?
  12. C# Threading/Async: Running a task in the background while UI is interactable
  13. Async thread body loop, It just works, but how?
  14. Async WebApi Thread.CurrentCulture
  15. I thought await continued on the same thread as the caller, but it seems not to
  16. How do I create a custom SynchronizationContext so that all continuations can be processed by my own single-threaded event loop?
  17. Synchronous implementation of interface that returns Task
  18. What is the difference between .Wait() vs .GetAwaiter().GetResult()?
  19. Write to a file from multiple threads asynchronously c#
  20. Async and Await with For Loop [duplicate]
  21. Calling an async method from a synchronous method
  22. Pause and Resume Subscription on cold IObservable
  23. Calling TaskCompletionSource.SetResult in a non blocking manner
  24. await Task.Run vs await
  25. Regarding local variable passing in Thread
  26. The calling thread cannot access this object because a different thread owns it.WPF [duplicate]
  27. lock keyword in C#
  28. Workaround for the WaitHandle.WaitAll 64 handle limit?
  29. Is C# += thread safe?
  30. How to create a thread?

Leave a Comment