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

It depends on what you mean by "immediately" but I think it's reasonable to assume that the TPL isn't going to hijack your currently executing thread to synchronously run the code in your task, if that's what you mean. At least not with the normal scheduler... you could probably write your own scheduler which does do so, but you can normally assume that StartNew will schedule the task rather than just running it inline.