Chromium Code Reviews Chromium Code Reviews
Issue 1355013002:
Speed up updating inner value of HTMLTextFormControlElements. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master| OLD | NEW |
|---|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <body> | 2 <body> |
| 3 <style> | 3 <style> |
| 4 textarea:valid { | 4 textarea:valid { |
| 5 background-color: lime; | 5 background-color: lime; |
| 6 } | 6 } |
| 7 textarea:invalid { | 7 textarea:invalid { |
| 8 background-color: red; | 8 background-color: red; |
| 9 } | 9 } |
| 10 </style> | 10 </style> |
| 11 <script src="../resources/runner.js"></script> | 11 <script src="../resources/runner.js"></script> |
| 12 <textarea maxlength=2147483647 id="container"></textarea> | 12 <textarea maxlength=2147483647 id="container"></textarea> |
| 13 <script> | 13 <script> |
| 14 var container = document.getElementById('container'); | 14 var container = document.getElementById('container'); |
| 15 var nodes = []; | 15 var nodes = []; |
| 16 var childCount = 1000; | 16 var childCount = 1000; |
| 17 // Vary the text nodes added, avoiding any secondary effects of using identical strings and reusing its allocation. | |
| 17 for (var i = 0; i < childCount; ++i) | 18 for (var i = 0; i < childCount; ++i) |
| 18 nodes.push(document.createTextNode('A quick brown fox jumps over the lazy do g.\n')); | 19 nodes.push(document.createTextNode('A quick brown fox jumps over the ' + i + 'th lazy dog.\n')); |
|
tkent
2015/09/24 03:16:40
Please land this separately.
sof
2015/09/25 08:51:35
Done + adjusted description accordingly.
| |
| 19 | 20 |
| 20 PerfTestRunner.measureRunsPerSecond({ | 21 PerfTestRunner.measureRunsPerSecond({ |
| 21 description: "Measures performance of adding text nodes to a textarea, then clearing it.", | 22 description: "Measures performance of adding text nodes to a textarea, then clearing it.", |
| 22 run: function() { | 23 run: function() { |
| 23 for (var i = 0; i < childCount; ++i) | 24 for (var i = 0; i < childCount; ++i) |
| 24 container.appendChild(nodes[i]); | 25 container.appendChild(nodes[i]); |
| 25 container.innerHTML = ''; | 26 container.innerHTML = ''; |
| 26 } | 27 } |
| 27 }); | 28 }); |
| 28 </script> | 29 </script> |
| 29 </body> | 30 </body> |
| OLD | NEW |
