| OLD | NEW |
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <body> | 2 <body> |
| 3 <script src="../resources/runner.js"></script> | 3 <script src="../resources/runner.js"></script> |
| 4 <script> | 4 <script> |
| 5 function createTable(rows, columns) { | 5 function createTable(rows, columns) { |
| 6 var table = document.createElement("TABLE"); | 6 var table = document.createElement("TABLE"); |
| 7 // Collapsing border is not necessary to see the slowness | 7 // Collapsing border is not necessary to see the slowness |
| 8 // but it makes the painting phase ~2x slower. | 8 // but it makes the painting phase ~2x slower. |
| 9 table.style.borderCollapse = "collapse"; | 9 table.style.borderCollapse = "collapse"; |
| 10 for (var i = 0; i < rows; ++i) { | 10 for (var i = 0; i < rows; ++i) { |
| 11 var tr = document.createElement("TR"); | 11 var tr = document.createElement("TR"); |
| 12 for (var j = 0; j < columns; ++j) { | 12 for (var j = 0; j < columns; ++j) { |
| 13 var td = document.createElement("TD"); | 13 var td = document.createElement("TD"); |
| 14 tr.appendChild(td); | 14 tr.appendChild(td); |
| 15 } | 15 } |
| 16 table.appendChild(tr); | 16 table.appendChild(tr); |
| 17 } | 17 } |
| 18 return table; | 18 return table; |
| 19 } | 19 } |
| 20 | 20 |
| 21 var table = createTable(300, 320); | 21 var table = createTable(600, 600); |
| 22 document.body.appendChild(table); | 22 document.body.appendChild(table); |
| 23 | 23 |
| 24 var ix = 30; | 24 var ix = 30; |
| 25 var iy = 30; | 25 var iy = 30; |
| 26 | 26 |
| 27 PerfTestRunner.measureFrameTime({ | 27 PerfTestRunner.measureFrameTime({ |
| 28 run: function() { | 28 run: function() { |
| 29 table.childNodes[iy].childNodes[ix].style.backgroundColor = 'teal'; | 29 table.childNodes[iy].childNodes[ix].style.backgroundColor = 'teal'; |
| 30 ix++; | 30 ix++; |
| 31 iy++; | 31 iy++; |
| 32 }, | 32 }, |
| 33 warmUpCount: 5, | 33 warmUpCount: 5, |
| 34 }); | 34 }); |
| 35 </script> | 35 </script> |
| 36 </body> | 36 </body> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2564773003:
Increase load of blink_perf.paint to reduce flakiness (Closed)
