Question

So I have a simple enough console app:

class Program
{
    static void Main(string[] args)
    {
        Console.ReadKey();
    }
}

I’ve built it with release configuration. When I run it and open task manager, I see it
has 4 threads. Why is this happening even though I’m not creating any threads?

This can’t possibly be each application. I tried opening notepad and it has just 1 thread. Although it is a native app and my console app is managed.

Any ideas?

Answer 1

I imagine threads you are seeing are:

1. The main thread.
2. The finalizer thread
3. The In-process debugger helper thread
4. The concurrent GC thread.

This post details some of the special CLR threads.