How the GPU utilization of Jetson TX2 is measured?

Thank you for your answer.

However, what I want to know is:

GPU utilization of TX2 is:

  1. Maximum utilization of 256 GPU cores
  2. Average utilization of 256 GPU cores
  3. Other way, etc.

I am curious about that information because I measured GPU utilization running CNN inference, then found that GPU utilization is too higher than my expectations.