long-sibling-list.html | Explore in Territory

<!DOCTYPE html>
<script src="../resources/runner.js"></script>
<div id="container"></div>
<script>
'use strict';

PerfTestRunner.assert_true(typeof window.GCController !== "undefined", 'GCController is required for accurate measurement');

PerfTestRunner.measureTime({
  description: 'Adds, then lays out, a long list of sibling elements ' +
               'separated by spaces',
  setup: () => {
    container.parentNode.replaceChild(container.cloneNode(false), container);
    PerfTestRunner.gc();
  },
  run: () => {
    const num_words = 30000;
    for (var i = 0; i < num_words; i++) {
      var a = document.createElement('a');
      a.appendChild(document.createTextNode('' + i));
      container.appendChild(a);
      container.appendChild(document.createTextNode(' '));
    }
    PerfTestRunner.forceLayout();
  }
});
</script>

chromium/third_party/blink/perf_tests/dom/long-sibling-list.html