Html程序  |  38行  |  1.31 KB

<html>
  <head>
    <title>Profiler: test profiles population on DevTools re-opening</title>
    <script type="text/javascript" src="resources/fib.js"></script>
    <script type="text/javascript">
      function profile_fib() {
        console.profile();
        run_fib();
        window.setTimeout('console.profileEnd();', 5000);
      }
    </script>
  </head>
  <body onload="profile_fib()">
    This test runs and profiles a simple looped computation.
    <br>
    <br>
    TEST
    <ul>
      <li>load file in the browser;
      <li>open DevTools with console (Ctrl+Shift+I on Win/Linux, Command+Option+I on Mac);
      <li>go to 'Profiles' page;
      <li>observe that 'Profile 1' item has appeared under 'CPU profiles' section;
      <li>reload page in browser;
      <li>observe that after 5 seconds, 'Profile 2' item has appeared under
        'CPU profiles' section;
      <li>take a couple of heap snapshots by pressing 'Take heap snapshot.'
        button (eye icon on the left of the status bar);
      <li>close DevTools window;
      <li>re-open DevTools window;
      <li>go to 'Profiles' page;
      <li>verify that CPU profiles 'Profile 1' and 'Profile 2', and heap profiles
        taken previously are restored back (<b>Warning:</b> it may take some
        time to re-process them).
    </ul>
    <br>
  </body>
</html>