Is Task.Factory.StartNew() guaranteed to create at least one new thread?

Question

I understand that the TPL does not necessarily create a new thread for every task in a parallel set, but does it always create at least one? eg:

private void MyF         


        

Answer 1

Yes, it will hit very shortly after dispatching the task to run.

No, it will not create a new thread, but claim one. When they say it doesn't always create a new thread, they are referring to the fact that it re-uses threads from a thread pool.

The size of the pool is based on the number of CPU cores detected. But it will always contain at least 1 thread. ;)