title: Idle and Other times in Chrome Developer Tools. Why the browser is inactivity for so long?
body: <p>What is included in "Idle" and "Other" times into Sumary of Timeline tab in Chrome Developer Tools?</p>
  
  <p><a href="https://i.stack.imgur.com/Ds7JN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Ds7JN.png" alt="enter image description here"></a></p>
  
  <p>What causes so much inaction? </p>
  
  <p>Why do these occur?</p>
  
  <p>How to reduce these times? Is it possible?</p>
  
  <p>Why the browser is inactivity for so long (in the context of idle time)? </p>
  
  <p>At the beginning of more than 1.8 seconds nothing happens:</p>
  
  <p><a href="https://i.stack.imgur.com/kSPo0.png" rel="noreferrer"><img src="https://i.stack.imgur.com/kSPo0.png" alt="enter image description here"></a></p>
  
  <p>In the middle the "Idle" and the "Other" occupy about 0.3 seconds:</p>
  
  <p><a href="https://i.stack.imgur.com/G9ILA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/G9ILA.png" alt="enter image description here"></a></p>
  
  <p>At the end of almost 3 seconds nothing happens:</p>
  
  <p><a href="https://i.stack.imgur.com/F1fNT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/F1fNT.png" alt="enter image description here"></a></p>
  
  <p>In this example, we have almost five seconds of inactivity browser...</p>