| OLD | NEW |
|---|
| (Empty) |
| 1 <html> | |
| 2 <head> | |
| 3 <script language="javascript"> | |
| 4 var last = new Date(); // The last time we sampled the timer | |
| 5 var total_value = 0; // The sum of the intervals measured | |
| 6 var total_count = 0; // The count of the intervals measured | |
| 7 var last_interval = 1; | |
| 8 function fire() { | |
| 9 | |
| 10 var current = new Date(); | |
| 11 var ms = current - last; | |
| 12 | |
| 13 total_value += ms; | |
| 14 total_count++; | |
| 15 | |
| 16 // Display the interval output. | |
| 17 var output = document.getElementById('output'); | |
| 18 output.innerHTML = ms + "ms"; | |
| 19 | |
| 20 // Display the average output. | |
| 21 var average = document.getElementById('average'); | |
| 22 average.innerHTML = total_value / total_count + "ms"; | |
| 23 | |
| 24 // Get the new interval from the input. | |
| 25 var input = document.getElementById('input'); | |
| 26 | |
| 27 // If the interval has changed, reset our averages. | |
| 28 if (input.value != last_interval) { | |
| 29 total_value = 0; | |
| 30 total_count = 0; | |
| 31 } | |
| 32 last_interval = input.value; | |
| 33 | |
| 34 last = new Date(); | |
| 35 setTimeout(fire, last_interval); | |
| 36 } | |
| 37 </script> | |
| 38 </head> | |
| 39 | |
| 40 <body onload='setTimeout("fire()", 1)'> | |
| 41 | |
| 42 <h1>Test JS setTimeout() speed</h1> | |
| 43 | |
| 44 This page tests the frequency of setTimeout() in the browser. | |
| 45 Javascript applications use setTimeout() as a mechanism to 'yield' | |
| 46 to the browser so that the browser can repaint. Most browsers | |
| 47 implement a 15ms setTimeout() minimum. Use this to page to measure | |
| 48 setTimeout() lag and discover your browser's minimum interval.<P> | |
| 49 | |
| 50 <hr> | |
| 51 | |
| 52 Desired ms to delay: <input id="input" type="text" value="1"><P> | |
| 53 | |
| 54 Measured delay:<br> | |
| 55 <ul> | |
| 56 instance: <div id="output"></div> | |
| 57 average: <div id="average"></div> | |
| 58 </ul> | |
| 59 | |
| 60 </body> | |
| 61 </html> | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 401923005:
webkit: Remove all files from test_shell/. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src