Debug.Log in loop hangs unity3d

I have many routines that output to Debug.Log. They are all in order. First function 1 runs, then 2 all the while outputing to the console the information about the functions. IF I just run function 1 and 2 I get output to the console.

But for some reason if I run function 3 which has a long loop, all the Debug.Log's are not written to the console, as if they can't be written while a loop is going on. So I can't debug the loop.

So what's happening is it stored in a buffer which is not released during a long loop?

If I make the loop smaller it works fine. But as it gets larger it totally hangs up unity3d. If I take out the Debug.Log calls it also runs fine.

???

Dan

 

I think the Debug.Log calls are buffered until the end of the frame update. A tight loop will be delayed by the calls, but they won't be displayed until the end of the frame.

 

If you want utilized a long loop function, you should use a Coroutine function.
For Example :

Code (csharp):

1.  
2. ....
3. StartCoroutine(Function3());
4. ....
5.  
6. IEnumerator Function3() {
7.   while (true) {
8.    .....
9.    Debug.Log("1 CheckPoint");
10.    yield return new WaitForEndOfFrame();
11.    .....
12.    Debug.Log("2 CheckPoint");
13.    yield return new WaitForEndOfFrame();
14.   }
15. }
16.