title: Chrome Timeline buffer usage
body: <p>I'm trying to optimize the animations of а sitе.</p>
  <p>I'm using Chrome dev tools(network/timeline/profile) to get some stats and have found out that when I track the timeline, the usage always buffers to 100% in very short time.</p>
  <p>I make a test on stackoverflow and the buffer usage doesn't behave in the same way.</p>
  <blockquote>
  <p>My questions are:</p>
  <ul>
  <li>What exactly is &quot;buffer usage&quot;?</li>
  <li>Should I be worried about it, and if &quot;yes&quot; - how to improve it?</li>
  </ul>
  </blockquote>
  <p>Any help would be greatly appreciated :)</p>
  <p>p.s. sorry for my bad English</p>