servo/tests/blink_perf_tests/perf_tests/layout/deeply-nested-grid.html
Jonathan Schwender ee781b71b4
tests: Vendor blink perf tests (#38654)
Vendors the [blink perf
tests](https://chromium.googlesource.com/chromium/src/+/HEAD/third_party/blink/perf_tests/).
These perf tests are useful to evaluate the performance of servo. 
The license that governs the perf tests is included in the folder. 
Running benchmark cases automatically is left to future work.

The update.py script is taken from mozjs and slightly adapted, so we can
easily filter
(and patch if this should be necessary in the future.

Testing: This PR just adds the perf_tests, but does not use or modify
them in any way.

---------

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
2025-08-17 09:54:04 +00:00

44 lines
1,022 B
HTML
Vendored

<!DOCTYPE html>
<style>
.grid {
display: grid;
}
.gridItem {
min-height: 0;
min-width: 0;
}
</style>
<script src="../resources/runner.js"></script>
<script>
'use strict';
function startTest() {
let root;
PerfTestRunner.measureRunsPerSecond({
description: "Measures performance of layout on a page using deeply nested grids.",
setup() {
let node = document.createElement("div");
node.className = "gridItem";
node.textContent = "Inner contents";
for (let i = 0; i < 16; ++i) {
let parent = document.createElement("div");
parent.className = "grid gridItem";
parent.appendChild(node);
node = parent;
}
root = node;
root.className = "grid";
document.body.appendChild(root);
PerfTestRunner.forceLayout();
},
run() {
root.style.display = "none";
PerfTestRunner.forceLayout();
root.style.display = "";
PerfTestRunner.forceLayout();
},
});
}
</script>
<body onload="startTest()"></body>