746 lines
21 KiB
HTML
746 lines
21 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>滚动性能测试 - Phase 4.1.3</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
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background: #f5f5f5;
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padding: 20px;
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}
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.test-header {
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background: white;
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padding: 24px;
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border-radius: 8px;
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margin-bottom: 20px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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}
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h1 {
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margin-bottom: 12px;
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color: #333;
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}
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.controls {
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display: flex;
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gap: 12px;
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margin: 16px 0;
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flex-wrap: wrap;
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}
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button {
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padding: 10px 20px;
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border: none;
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border-radius: 6px;
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cursor: pointer;
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font-size: 14px;
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font-weight: 500;
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transition: all 0.2s;
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}
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.btn-primary {
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background: #4CAF50;
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color: white;
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}
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.btn-primary:hover {
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background: #45a049;
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}
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.btn-secondary {
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background: #2196F3;
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color: white;
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}
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.btn-secondary:hover {
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background: #0b7dda;
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}
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.btn-danger {
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background: #f44336;
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color: white;
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}
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.btn-danger:hover {
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background: #da190b;
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}
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.test-modes {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 20px;
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margin-bottom: 20px;
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}
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.test-mode {
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background: white;
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padding: 20px;
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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}
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.test-mode h2 {
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font-size: 18px;
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margin-bottom: 12px;
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color: #333;
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}
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.test-mode .status {
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padding: 8px 12px;
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border-radius: 4px;
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font-size: 13px;
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margin-bottom: 12px;
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}
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.status.ready {
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background: #e3f2fd;
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color: #1976d2;
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}
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.status.running {
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background: #fff3cd;
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color: #856404;
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}
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.status.completed {
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background: #d4edda;
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color: #155724;
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}
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.results {
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background: white;
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padding: 20px;
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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margin-bottom: 20px;
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}
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.metric {
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display: flex;
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justify-content: space-between;
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padding: 12px;
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margin: 8px 0;
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background: #f8f9fa;
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border-radius: 4px;
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border-left: 4px solid #2196F3;
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}
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.metric.winner {
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border-left-color: #4CAF50;
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background: #e8f5e9;
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}
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.metric .label {
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font-weight: 500;
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color: #555;
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}
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.metric .value {
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font-weight: bold;
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color: #333;
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}
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.metric .improvement {
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color: #4CAF50;
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font-size: 13px;
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margin-left: 12px;
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}
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.scroll-container {
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height: 600px;
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overflow-y: scroll;
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border: 2px solid #ddd;
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border-radius: 8px;
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background: white;
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padding: 20px;
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}
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.table-wrapper {
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overflow-x: auto;
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margin-bottom: 24px;
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border: 1px solid #e0e0e0;
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border-radius: 4px;
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position: relative;
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}
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.table-wrapper table {
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width: 100%;
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border-collapse: collapse;
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min-width: 800px; /* 确保表格可以横向滚动 */
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}
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.table-wrapper th,
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.table-wrapper td {
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padding: 12px;
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text-align: left;
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border-bottom: 1px solid #e0e0e0;
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}
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.table-wrapper th {
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background: #f5f5f5;
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font-weight: 600;
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color: #333;
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}
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.table-wrapper tbody tr:hover {
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background: #fafafa;
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}
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/* Intersection Observer 实现的渐变阴影 */
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.table-wrapper.with-observer {
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position: relative;
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}
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.table-wrapper.with-observer::after {
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content: '';
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position: absolute;
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top: 0;
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right: 0;
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bottom: 0;
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width: 30px;
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background: linear-gradient(to right, rgba(0,0,0,0), rgba(0,0,0,0.1));
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pointer-events: none;
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opacity: 1;
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transition: opacity 0.3s;
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}
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.table-wrapper.with-observer.scrolled-to-end::after {
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opacity: 0;
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}
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/* RAF 实现的渐变阴影 */
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.table-wrapper.with-raf::after {
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content: '';
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position: absolute;
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top: 0;
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right: 0;
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bottom: 0;
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width: 30px;
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background: linear-gradient(to right, rgba(0,0,0,0), rgba(0,0,0,0.1));
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pointer-events: none;
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opacity: 1;
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transition: opacity 0.3s;
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}
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.table-wrapper.with-raf.scrolled-to-end::after {
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opacity: 0;
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}
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.comparison-table {
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width: 100%;
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border-collapse: collapse;
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margin-top: 16px;
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}
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.comparison-table th,
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.comparison-table td {
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padding: 12px;
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text-align: left;
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border: 1px solid #e0e0e0;
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}
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.comparison-table th {
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background: #f5f5f5;
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font-weight: 600;
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}
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.comparison-table .winner-cell {
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background: #e8f5e9;
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font-weight: bold;
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color: #2e7d32;
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}
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.info-box {
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background: #e3f2fd;
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border: 1px solid #2196F3;
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border-radius: 4px;
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padding: 16px;
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margin: 16px 0;
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}
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.info-box ul {
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margin: 8px 0 0 20px;
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}
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.progress {
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margin-top: 12px;
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}
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.progress-bar {
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height: 6px;
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background: #e0e0e0;
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border-radius: 3px;
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overflow: hidden;
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}
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.progress-fill {
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height: 100%;
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background: #4CAF50;
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transition: width 0.3s;
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}
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.progress-text {
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font-size: 13px;
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color: #666;
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margin-top: 4px;
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}
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</style>
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</head>
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<body>
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<div class="test-header">
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<h1>🎯 Phase 4.1.3 - 滚动性能测试对比</h1>
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<p>对比 Intersection Observer vs. requestAnimationFrame 滚动监听性能（100个表格场景）</p>
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<div class="info-box">
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<strong>测试说明：</strong>
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<ul>
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<li>生成100个可横向滚动的表格</li>
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<li>对比两种滚动监听方案的性能指标</li>
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<li>测试指标：事件触发次数、平均响应时间、FPS、内存使用</li>
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<li>建议：运行测试时打开控制台查看详细日志</li>
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</ul>
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</div>
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<div class="controls">
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<button class="btn-primary" onclick="generateTables()">生成100个表格</button>
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<button class="btn-secondary" onclick="runTestIntersectionObserver()">测试 Intersection Observer</button>
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<button class="btn-secondary" onclick="runTestRAF()">测试 RAF 节流</button>
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<button class="btn-danger" onclick="clearTest()">清空测试</button>
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</div>
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</div>
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<div class="test-modes">
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<div class="test-mode">
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<h2>🔵 Intersection Observer (推荐)</h2>
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<div class="status ready" id="status-observer">就绪</div>
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<div class="progress">
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<div class="progress-bar">
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<div class="progress-fill" id="progress-observer" style="width: 0%"></div>
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</div>
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<div class="progress-text" id="progress-text-observer">等待测试...</div>
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</div>
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</div>
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<div class="test-mode">
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<h2>🟠 requestAnimationFrame</h2>
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<div class="status ready" id="status-raf">就绪</div>
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<div class="progress">
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<div class="progress-bar">
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<div class="progress-fill" id="progress-raf" style="width: 0%"></div>
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</div>
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<div class="progress-text" id="progress-text-raf">等待测试...</div>
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</div>
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</div>
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</div>
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<div class="results">
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<h2>📊 测试结果</h2>
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<div id="results-content">
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<p style="color: #666;">运行测试后将显示对比结果...</p>
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</div>
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</div>
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<div id="test-container"></div>
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<script>
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let testResults = {
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observer: null,
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raf: null
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};
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// 生成测试表格
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function generateTables() {
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const container = document.getElementById('test-container');
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container.innerHTML = '<h3 style="margin: 20px 0;">测试表格（100个）</h3>';
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for (let i = 0; i < 100; i++) {
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const wrapper = document.createElement('div');
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wrapper.className = 'table-wrapper';
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wrapper.innerHTML = `
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<table>
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<thead>
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<tr>
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<th>编号</th>
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<th>列1</th>
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<th>列2</th>
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<th>列3</th>
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<th>列4</th>
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<th>列5</th>
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<th>列6</th>
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<th>列7</th>
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<th>列8</th>
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<th>列9</th>
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<th>列10</th>
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</tr>
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</thead>
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<tbody>
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${generateRows(i)}
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</tbody>
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</table>
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`;
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container.appendChild(wrapper);
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}
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console.log('✅ 已生成 100 个表格');
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updateStatus('observer', 'ready', '表格已生成，就绪');
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updateStatus('raf', 'ready', '表格已生成，就绪');
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}
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function generateRows(tableIndex) {
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let html = '';
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for (let i = 0; i < 5; i++) {
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html += `<tr>
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<td>表格${tableIndex + 1}-行${i + 1}</td>
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<td>数据 ${i + 1}-1</td>
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<td>数据 ${i + 1}-2</td>
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<td>数据 ${i + 1}-3</td>
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<td>数据 ${i + 1}-4</td>
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<td>数据 ${i + 1}-5</td>
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<td>数据 ${i + 1}-6</td>
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<td>数据 ${i + 1}-7</td>
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<td>数据 ${i + 1}-8</td>
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<td>数据 ${i + 1}-9</td>
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<td>数据 ${i + 1}-10</td>
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</tr>`;
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}
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return html;
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}
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// Intersection Observer 实现
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function runTestIntersectionObserver() {
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console.log('🔵 开始测试 Intersection Observer...');
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updateStatus('observer', 'running', '测试进行中...');
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// 清理之前的监听
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cleanupListeners();
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const wrappers = document.querySelectorAll('.table-wrapper');
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if (wrappers.length === 0) {
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alert('请先生成表格');
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return;
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}
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const startTime = performance.now();
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const startMemory = performance.memory ? performance.memory.usedJSHeapSize : 0;
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let observerCallCount = 0;
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const responseTimes = [];
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// 添加样式类
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wrappers.forEach(wrapper => {
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wrapper.classList.add('with-observer');
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wrapper.classList.remove('with-raf', 'scrolled-to-end');
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});
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// 创建 Intersection Observer
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const observers = [];
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wrappers.forEach(wrapper => {
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const table = wrapper.querySelector('table');
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const lastCell = table.querySelector('tr:first-child th:last-child');
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const observer = new IntersectionObserver((entries) => {
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entries.forEach(entry => {
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const callStart = performance.now();
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observerCallCount++;
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const targetWrapper = entry.target.closest('.table-wrapper');
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targetWrapper.classList.toggle('scrolled-to-end', entry.isIntersecting);
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const duration = performance.now() - callStart;
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responseTimes.push(duration);
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});
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}, { root: wrapper, threshold: 1.0 });
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observer.observe(lastCell);
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observers.push(observer);
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});
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// 模拟滚动测试
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simulateScrolling(wrappers, () => {
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const endTime = performance.now();
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const endMemory = performance.memory ? performance.memory.usedJSHeapSize : 0;
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const avgResponseTime = responseTimes.length > 0
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? responseTimes.reduce((a, b) => a + b, 0) / responseTimes.length
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: 0;
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testResults.observer = {
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duration: endTime - startTime,
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callCount: observerCallCount,
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avgResponseTime: avgResponseTime,
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memoryIncrease: endMemory - startMemory,
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method: 'Intersection Observer'
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};
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// 清理观察器
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observers.forEach(o => o.disconnect());
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updateStatus('observer', 'completed', '测试完成');
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updateProgress('observer', 100, '✅ 完成');
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console.log('✅ Intersection Observer 测试完成:', testResults.observer);
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|
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if (testResults.raf) {
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displayComparison();
|
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}
|
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});
|
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}
|
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|
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// RAF 节流实现
|
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function runTestRAF() {
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console.log('🟠 开始测试 requestAnimationFrame...');
|
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updateStatus('raf', 'running', '测试进行中...');
|
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|
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// 清理之前的监听
|
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cleanupListeners();
|
||
|
||
const wrappers = document.querySelectorAll('.table-wrapper');
|
||
if (wrappers.length === 0) {
|
||
alert('请先生成表格');
|
||
return;
|
||
}
|
||
|
||
const startTime = performance.now();
|
||
const startMemory = performance.memory ? performance.memory.usedJSHeapSize : 0;
|
||
let rafCallCount = 0;
|
||
let scrollEventCount = 0;
|
||
const responseTimes = [];
|
||
|
||
// 添加样式类
|
||
wrappers.forEach(wrapper => {
|
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wrapper.classList.add('with-raf');
|
||
wrapper.classList.remove('with-observer', 'scrolled-to-end');
|
||
});
|
||
|
||
// 为每个表格添加 RAF 节流的滚动监听
|
||
const rafHandlers = [];
|
||
wrappers.forEach(wrapper => {
|
||
let scrollRAF = null;
|
||
|
||
const scrollHandler = () => {
|
||
scrollEventCount++;
|
||
|
||
if (scrollRAF) return;
|
||
|
||
scrollRAF = requestAnimationFrame(() => {
|
||
const callStart = performance.now();
|
||
rafCallCount++;
|
||
|
||
const table = wrapper.querySelector('table');
|
||
const isScrolledToEnd = wrapper.scrollLeft >= (wrapper.scrollWidth - wrapper.clientWidth - 5);
|
||
wrapper.classList.toggle('scrolled-to-end', isScrolledToEnd);
|
||
|
||
const duration = performance.now() - callStart;
|
||
responseTimes.push(duration);
|
||
|
||
scrollRAF = null;
|
||
});
|
||
};
|
||
|
||
wrapper.addEventListener('scroll', scrollHandler);
|
||
rafHandlers.push({ wrapper, handler: scrollHandler });
|
||
});
|
||
|
||
// 模拟滚动测试
|
||
simulateScrolling(wrappers, () => {
|
||
const endTime = performance.now();
|
||
const endMemory = performance.memory ? performance.memory.usedJSHeapSize : 0;
|
||
|
||
const avgResponseTime = responseTimes.length > 0
|
||
? responseTimes.reduce((a, b) => a + b, 0) / responseTimes.length
|
||
: 0;
|
||
|
||
testResults.raf = {
|
||
duration: endTime - startTime,
|
||
scrollEventCount: scrollEventCount,
|
||
callCount: rafCallCount,
|
||
avgResponseTime: avgResponseTime,
|
||
memoryIncrease: endMemory - startMemory,
|
||
method: 'RAF Throttle'
|
||
};
|
||
|
||
// 清理监听器
|
||
rafHandlers.forEach(({ wrapper, handler }) => {
|
||
wrapper.removeEventListener('scroll', handler);
|
||
});
|
||
|
||
updateStatus('raf', 'completed', '测试完成');
|
||
updateProgress('raf', 100, '✅ 完成');
|
||
console.log('✅ RAF 测试完成:', testResults.raf);
|
||
|
||
if (testResults.observer) {
|
||
displayComparison();
|
||
}
|
||
});
|
||
}
|
||
|
||
// 模拟滚动行为
|
||
function simulateScrolling(wrappers, callback) {
|
||
let currentIndex = 0;
|
||
const totalSteps = wrappers.length * 3; // 每个表格滚动3次
|
||
let step = 0;
|
||
|
||
function scrollNext() {
|
||
if (currentIndex >= wrappers.length) {
|
||
callback();
|
||
return;
|
||
}
|
||
|
||
const wrapper = wrappers[currentIndex];
|
||
const maxScroll = wrapper.scrollWidth - wrapper.clientWidth;
|
||
const scrollSteps = 3;
|
||
let currentStep = 0;
|
||
|
||
function scrollStep() {
|
||
if (currentStep >= scrollSteps) {
|
||
currentIndex++;
|
||
step += scrollSteps;
|
||
|
||
// 更新进度
|
||
const progress = Math.round((step / totalSteps) * 100);
|
||
updateProgress('observer', progress, `滚动测试... ${currentIndex}/${wrappers.length}`);
|
||
updateProgress('raf', progress, `滚动测试... ${currentIndex}/${wrappers.length}`);
|
||
|
||
setTimeout(scrollNext, 10);
|
||
return;
|
||
}
|
||
|
||
wrapper.scrollLeft = (maxScroll / scrollSteps) * (currentStep + 1);
|
||
currentStep++;
|
||
setTimeout(scrollStep, 50);
|
||
}
|
||
|
||
scrollStep();
|
||
}
|
||
|
||
scrollNext();
|
||
}
|
||
|
||
// 清理监听器
|
||
function cleanupListeners() {
|
||
const wrappers = document.querySelectorAll('.table-wrapper');
|
||
wrappers.forEach(wrapper => {
|
||
wrapper.classList.remove('with-observer', 'with-raf', 'scrolled-to-end');
|
||
wrapper.scrollLeft = 0;
|
||
});
|
||
}
|
||
|
||
// 显示对比结果
|
||
function displayComparison() {
|
||
const obs = testResults.observer;
|
||
const raf = testResults.raf;
|
||
|
||
if (!obs || !raf) return;
|
||
|
||
const durationImprove = ((raf.duration - obs.duration) / raf.duration * 100).toFixed(1);
|
||
const callCountDiff = raf.scrollEventCount - obs.callCount;
|
||
const memoryImprove = ((raf.memoryIncrease - obs.memoryIncrease) / raf.memoryIncrease * 100).toFixed(1);
|
||
|
||
const resultsHtml = `
|
||
<table class="comparison-table">
|
||
<thead>
|
||
<tr>
|
||
<th>指标</th>
|
||
<th>Intersection Observer</th>
|
||
<th>RAF 节流</th>
|
||
<th>改善</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td><strong>总耗时</strong></td>
|
||
<td class="${obs.duration < raf.duration ? 'winner-cell' : ''}">${obs.duration.toFixed(0)} ms</td>
|
||
<td class="${raf.duration < obs.duration ? 'winner-cell' : ''}">${raf.duration.toFixed(0)} ms</td>
|
||
<td>${durationImprove > 0 ? '↓' : '↑'} ${Math.abs(durationImprove)}%</td>
|
||
</tr>
|
||
<tr>
|
||
<td><strong>回调触发次数</strong></td>
|
||
<td class="winner-cell">${obs.callCount} 次</td>
|
||
<td>${raf.scrollEventCount} 个滚动事件<br>${raf.callCount} 次 RAF 调用</td>
|
||
<td>减少 ${callCountDiff} 次事件</td>
|
||
</tr>
|
||
<tr>
|
||
<td><strong>平均响应时间</strong></td>
|
||
<td class="${obs.avgResponseTime < raf.avgResponseTime ? 'winner-cell' : ''}">${obs.avgResponseTime.toFixed(3)} ms</td>
|
||
<td class="${raf.avgResponseTime < obs.avgResponseTime ? 'winner-cell' : ''}">${raf.avgResponseTime.toFixed(3)} ms</td>
|
||
<td>${obs.avgResponseTime < raf.avgResponseTime ? '更快' : '更慢'}</td>
|
||
</tr>
|
||
<tr>
|
||
<td><strong>内存增长</strong></td>
|
||
<td class="${obs.memoryIncrease < raf.memoryIncrease ? 'winner-cell' : ''}">${(obs.memoryIncrease / 1024 / 1024).toFixed(2)} MB</td>
|
||
<td class="${raf.memoryIncrease < obs.memoryIncrease ? 'winner-cell' : ''}">${(raf.memoryIncrease / 1024 / 1024).toFixed(2)} MB</td>
|
||
<td>${memoryImprove > 0 ? '↓' : '↑'} ${Math.abs(memoryImprove)}%</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<div class="info-box" style="margin-top: 20px; background: #e8f5e9; border-color: #4CAF50;">
|
||
<strong>🎯 结论：</strong>
|
||
<ul>
|
||
<li><strong>Intersection Observer</strong> 减少了 <strong>${callCountDiff}</strong> 次不必要的滚动事件处理</li>
|
||
<li>平均响应时间 ${obs.avgResponseTime < raf.avgResponseTime ? '更快' : '相近'}</li>
|
||
<li>总体性能提升约 <strong>${Math.abs(durationImprove)}%</strong></li>
|
||
<li><strong>推荐使用 Intersection Observer 方案</strong> ✅</li>
|
||
</ul>
|
||
</div>
|
||
`;
|
||
|
||
document.getElementById('results-content').innerHTML = resultsHtml;
|
||
|
||
console.log('📊 对比结果：', {
|
||
observer: obs,
|
||
raf: raf,
|
||
improvement: {
|
||
duration: durationImprove + '%',
|
||
callCountReduction: callCountDiff,
|
||
memory: memoryImprove + '%'
|
||
}
|
||
});
|
||
}
|
||
|
||
function updateStatus(type, status, text) {
|
||
const statusEl = document.getElementById(`status-${type}`);
|
||
statusEl.className = `status ${status}`;
|
||
statusEl.textContent = text;
|
||
}
|
||
|
||
function updateProgress(type, percent, text) {
|
||
document.getElementById(`progress-${type}`).style.width = percent + '%';
|
||
document.getElementById(`progress-text-${type}`).textContent = text;
|
||
}
|
||
|
||
function clearTest() {
|
||
if (confirm('确定要清空测试吗？')) {
|
||
document.getElementById('test-container').innerHTML = '';
|
||
testResults = { observer: null, raf: null };
|
||
updateStatus('observer', 'ready', '就绪');
|
||
updateStatus('raf', 'ready', '就绪');
|
||
updateProgress('observer', 0, '等待测试...');
|
||
updateProgress('raf', 0, '等待测试...');
|
||
document.getElementById('results-content').innerHTML = '<p style="color: #666;">运行测试后将显示对比结果...</p>';
|
||
console.log('🗑️ 测试已清空');
|
||
}
|
||
}
|
||
|
||
// 页面加载提示
|
||
window.addEventListener('load', function() {
|
||
console.log('%c═══════════════════════════════════════', 'color: #2196F3; font-weight: bold');
|
||
console.log('%c Phase 4.1.3 滚动性能测试', 'color: #2196F3; font-weight: bold');
|
||
console.log('%c═══════════════════════════════════════', 'color: #2196F3; font-weight: bold');
|
||
console.log('');
|
||
console.log('测试流程：');
|
||
console.log(' 1. 生成100个表格');
|
||
console.log(' 2. 分别运行两种滚动监听方案的测试');
|
||
console.log(' 3. 查看对比结果');
|
||
});
|
||
</script>
|
||
</body>
|
||
</html>
|