title: Difference among "Show GPU view updates" & "Show hardware layer updates"
body: <p>I was wondering, what are the differences among </p>
  
  <ul>
  <li>"Show GPU view updates"</li>
  <li>"Show hardware layer updates"?</li>
  </ul>
  
  <p>When we talk about <a href="http://developer.android.com/guide/topics/graphics/hardware-accel.html" rel="nofollow noreferrer">Hardware acceleration</a>, which is the option we should turn on, so that we can monitor whether "hardware acceleration" is done correctly?</p>
  
  <p>p/s All the while, my understanding on "hardware acceleration" is, let GPU runs drawing code.</p>
  
  <p><img src="https://i.stack.imgur.com/ZXNMk.png" alt="enter image description here"></p>