Android Hierarchy viewer is not showing timings for rendering

I'm having some performance problems with my application and I've found this article for helping me.

The problem is that when I execute Hierarchy viewer, I always have n/a as Measure, Layout and Draw time for each component of the view.

I'm using Android 3.2 in my virtual device.

Thanks.

EDIT

I add a capture of the Hierarchy Viewer output:

When I use the Hierarchy viewer with the initial activity (a very simple activity), it works perfectly. But when i used this activity, I can't see the times for drawing each component.