title: How does browser GPU memory usage works?
body: <p>By pressing F12 and then Esc on Chrome, you can see a few options to tick. One of them is show FPS meter, which allows us to see GPU memory usage in real time.
  I have a few questions regarding this GPU memory usage:</p>
  
  <ol>
  <li>This GPU memory means the memory the webpage needs to store its code: variables, methods, images, cached videos, etc. Is this right to affirm?</li>
  <li>Is there a reason as to why it has an upper bound of 512 Mb? Is there a way to reduce or increase it?</li>
  <li>How much GPU memory usage is enough to see considerable slowdown on browser navigation?</li>
  <li>If I have an array with millions of elements (just hypothetically), and I splice all the elements in the array, will it free the memory that was in use? Or will it not "really" free the memory, requiring an additional step to actually wipe it out?</li>
  </ol>