Add paint perf tests for extending selection in large text

Most of the code is copied from perf_tests/paint/select-all-words.html Change-Id: I3d231a67f8162ac3145f070df38875de1a72dfa1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321233 Commit-Queue: Koji Ishii <kojii@chromium.org> Reviewed-by: Koji Ishii <kojii@chromium.org> Reviewed-by: Philip Rogers <pdr@chromium.org> Cr-Commit-Position: refs/heads/master@{#792147}

Add paint perf tests for extending selection in large text
Most of the code is copied from perf_tests/paint/select-all-words.html Change-Id: I3d231a67f8162ac3145f070df38875de1a72dfa1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321233 Commit-Queue: Koji Ishii <kojii@chromium.org> Reviewed-by: Koji Ishii <kojii@chromium.org> Reviewed-by: Philip Rogers <pdr@chromium.org> Cr-Commit-Position: refs/heads/master@{#792147}
e69fc0d9 · Xianzhu Wang · Commit Bot · da3cd297 · e69fc0d9 · e69fc0d9
Commit e69fc0d9 authored Jul 28, 2020 by Xianzhu Wang Committed by Commit Bot Jul 28, 2020
2 changed files
--- a/third_party/blink/perf_tests/paint/modify-huge-selection.html
+++ b/third_party/blink/perf_tests/paint/modify-huge-selection.html
+<!doctype html>
+<script src="../resources/runner.js"></script>
+<script src="../layout/resources/line-layout-perf-test.js"></script>
+<div id="container"></div>
+<script>
+const kNumberOfWords = 10000 * 30;
+const kCount = 10;
+const container = document.getElementById('container');
+const selection = window.getSelection();
+
+container.textContent = (() => {
+  const words = [];
+  for (let i = 0; i < kNumberOfWords; ++i)
+    words.push(TextGenerator.createWord(i % 12 + 3));
+  return words.join(' ');
+})();
+const text = container.firstChild;
+
+let isDone = false;
+let startTime = 0;
+let counter = 0;
+
+function runTest() {
+  if (startTime !== 0 && counter % kCount === 0) {
+    PerfTestRunner.measureValueAsync(PerfTestRunner.now() - startTime);
+    PerfTestRunner.addRunTestEndMarker(); // For tracing metrics
+  }
+  if (isDone)
+    return;
+  window.requestAnimationFrame(() => {
+    if (counter % kCount === 0) {
+      PerfTestRunner.addRunTestStartMarker();
+      startTime = PerfTestRunner.now();  // For tracing metrics
+    }
+    selection.setBaseAndExtent(text, 4000 - counter * 10, text, text.length);
+    ++counter;
+    runTest();
+  });
+}
+
+
+PerfTestRunner.startMeasureValuesAsync({
+  unit: 'ms',
+  run: function() {
+    runTest();
+  },
+  done: function() {
+    container.textContent = '';
+    isDone = true;
+  },
+  iterationCount: 10,
+  tracingCategories: 'blink',
+  traceEventsToMeasure: [
+    'LocalFrameView::RunPrePaintLifecyclePhase',
+    'LocalFrameView::RunPaintLifecyclePhase'
+  ],
+});
+</script>
--- a/third_party/blink/perf_tests/paint/modify-selection.html
+++ b/third_party/blink/perf_tests/paint/modify-selection.html
+<!doctype html>
+<script src="../resources/runner.js"></script>
+<script src="../layout/resources/line-layout-perf-test.js"></script>
+<div id="container"></div>
+<script>
+const kNumberOfWords = 10000 * 30;
+const kCount = 10;
+const container = document.getElementById('container');
+const selection = window.getSelection();
+
+container.textContent = (() => {
+  const words = [];
+  for (let i = 0; i < kNumberOfWords; ++i)
+    words.push(TextGenerator.createWord(i % 12 + 3));
+  return words.join(' ');
+})();
+const text = container.firstChild;
+selection.setBaseAndExtent(text, 1000, text, 4000);
+
+let isDone = false;
+let startTime = 0;
+let counter = 0;
+
+function runTest() {
+  if (startTime !== 0 && counter % kCount === 0) {
+    PerfTestRunner.measureValueAsync(PerfTestRunner.now() - startTime);
+    PerfTestRunner.addRunTestEndMarker(); // For tracing metrics
+  }
+  if (isDone)
+    return;
+  window.requestAnimationFrame(() => {
+    if (counter % kCount === 0) {
+      PerfTestRunner.addRunTestStartMarker();
+      startTime = PerfTestRunner.now();  // For tracing metrics
+    }
+    selection.modify("extend", "forward", "word");
+    ++counter;
+    runTest();
+  });
+}
+
+
+PerfTestRunner.startMeasureValuesAsync({
+  unit: 'ms',
+  run: function() {
+    runTest();
+  },
+  done: function() {
+    container.textContent = '';
+    isDone = true;
+  },
+  iterationCount: 10,
+  tracingCategories: 'blink',
+  traceEventsToMeasure: [
+    'LocalFrameView::RunPrePaintLifecyclePhase',
+    'LocalFrameView::RunPaintLifecyclePhase'
+  ],
+});
+</script>