| Index: third_party/WebKit/PerformanceTests/Paint/large-table-background-change-with-zero-width-collapsed-borders.html
|
| diff --git a/third_party/WebKit/PerformanceTests/Paint/large-table-background-change-with-zero-width-collapsed-borders.html b/third_party/WebKit/PerformanceTests/Paint/large-table-background-change-with-zero-width-collapsed-borders.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..56436e0efd8ca456a917dcfaf4f0525594963f21
|
| --- /dev/null
|
| +++ b/third_party/WebKit/PerformanceTests/Paint/large-table-background-change-with-zero-width-collapsed-borders.html
|
| @@ -0,0 +1,36 @@
|
| +<!DOCTYPE html>
|
| +<body>
|
| +<script src="../resources/runner.js"></script>
|
| +<style>td { border: 0 solid blue }</style>
|
| +<script>
|
| +function createTable(rows, columns) {
|
| + var table = document.createElement("TABLE");
|
| + // Collapsing border is not necessary to see the slowness
|
| + // but it makes the painting phase ~2x slower.
|
| + table.style.borderCollapse = "collapse";
|
| + for (var i = 0; i < rows; ++i) {
|
| + var tr = document.createElement("TR");
|
| + for (var j = 0; j < columns; ++j) {
|
| + var td = document.createElement("TD");
|
| + tr.appendChild(td);
|
| + }
|
| + table.appendChild(tr);
|
| + }
|
| + return table;
|
| +}
|
| +
|
| +var table = createTable(600, 600);
|
| +document.body.appendChild(table);
|
| +
|
| +var ix = 30;
|
| +var iy = 30;
|
| +
|
| +PerfTestRunner.measureFrameTime({
|
| + run: function() {
|
| + table.childNodes[iy].childNodes[ix].style.backgroundColor = 'teal';
|
| + ix++;
|
| + iy++;
|
| + },
|
| +});
|
| +</script>
|
| +</body>
|
|
|
Chromium Code Reviews
Issue 2842313002:
Add two large table collapsed border performance tests (Closed)
