title: CPU profiling with web browser
body: <p>I have a static webpage generated with a Ruby script. It uses CSS, Javascript and jQuery. When I rapidly click on some buttons in the page that are connected to jQuery events, the CPU usage goes nearly 100%. I want to see the cause of the high CPU usage, and tried Google Chrome CPU profiler, and got the following shot:</p>
  
  <p><img src="https://i.stack.imgur.com/tH0b2.png" alt="CPU profile"></p>
  
  <p>The high CPU seems to be caused by what is described as <code>(program)</code>. What does that mean? And, is there a way to break down the <code>(program)</code> part to see in more detail which of my functions are using up the CPU?</p>