{"id":115087,"date":"2026-10-11T05:41:11","date_gmt":"2026-10-10T21:41:11","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/115087.html"},"modified":"2026-10-11T05:41:11","modified_gmt":"2026-10-10T21:41:11","slug":"%e7%a7%bb%e5%8a%a8%e7%ab%af%e5%8a%a8%e7%94%bb%e6%8e%89%e5%b8%a7%e6%8e%92%e6%9f%a5%e5%bf%83%e6%b3%95%ef%bc%9a%e6%b7%b1%e5%85%a5-chrome-rendering-%e9%9d%a2%e6%9d%bf%e4%b8%8e-gpu-%e6%a0%85%e6%a0%bc","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/115087.html","title":{"rendered":"\u79fb\u52a8\u7aef\u52a8\u753b\u6389\u5e27\u6392\u67e5\u5fc3\u6cd5\uff1a\u6df1\u5165 Chrome Rendering \u9762\u677f\u4e0e GPU \u6805\u683c\u5316\u5206\u6790"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261010214106-6acab0f22c9cf.png\" alt=\"\u5c01\u9762\u4fe1\u606f\u56fe\" \/><\/p>\n<p>\u5728\u79fb\u52a8\u7aef\u5927\u4fc3\u52a8\u6548\u7684\u6027\u80fd\u653b\u575a\u4e2d&#xff0c;\u5f88\u591a\u524d\u7aef\u5de5\u7a0b\u5e08\u6700\u5bb9\u6613\u9677\u5165\u7684\u8bef\u533a&#xff0c;\u5c31\u662f\u628a\u6240\u6709\u7684\u6ce8\u610f\u529b\u90fd\u6b7b\u6b7b\u76ef\u5728 JavaScript \u7684\u6267\u884c\u8017\u65f6\u4e0a\u3002\u6253\u5f00 Chrome DevTools Performance \u9762\u677f\u5f55\u5236\u4e00\u6bb5 trace&#xff0c;\u770b\u5230\u4e3b\u7ebf\u7a0b\u91cc\u7684 JS \u51fd\u6570\u5355\u6b21\u6267\u884c\u53ea\u6709\u4e0d\u5230 2ms&#xff0c;\u957f\u4efb\u52a1&#xff08;Long Tasks&#xff09;\u6570\u91cf\u4e3a\u96f6&#xff0c;\u4fbf\u4fe1\u5fc3\u6ee1\u6ee1\u5730\u5411\u4e1a\u52a1\u6253\u5305\u7968&#xff1a;\u201c\u6211\u4eec\u7684\u4ee3\u7801\u7edd\u65e0\u6027\u80fd\u95ee\u9898\u201d\u3002<\/p>\n<p>\u7136\u800c\u5f53\u9875\u9762\u63a8\u5230\u4f4e\u7aef\u5b89\u5353\u771f\u673a\u4e0a\u5b9e\u9645\u8dd1\u8d77\u6765\u65f6&#xff0c;\u90a3\u4e2a\u770b\u4f3c\u6781\u5ea6\u8f7b\u91cf\u7684\u5165\u573a\u52a8\u6548\u4f9d\u7136\u75af\u72c2\u6389\u5e27&#xff0c;\u8089\u773c\u53ef\u89c1\u5730\u5361\u987f\u6495\u88c2&#xff0c;\u5e27\u7387\u751a\u81f3\u76f4\u63a5\u6389\u5230\u4e86 24FPS \u4ee5\u4e0b\u3002<\/p>\n<p>\u5f88\u591a\u4eba\u9762\u5bf9\u8fd9\u79cd\u60c5\u51b5\u987f\u65f6\u675f\u624b\u65e0\u7b56&#xff1a;\u201cJS \u90fd\u4e0d\u5361\u4e86&#xff0c;\u5230\u5e95\u5361\u5728\u54ea\u91cc&#xff1f;\u201d<\/p>\n<p>\u8fd9\u662f\u56e0\u4e3a&#xff1a;\u6d4f\u89c8\u5668\u7684\u6e32\u67d3\u7ba1\u7ebf\u4e2d&#xff0c;JavaScript \u4ec5\u4ec5\u662f\u6700\u524d\u7aef\u7684\u53d1\u4ee4\u67aa\u3002\u5728 JS \u8dd1\u5b8c\u4e4b\u540e&#xff0c;\u6837\u5f0f\u8ba1\u7b97&#xff08;Styles&#xff09;\u3001\u56fe\u5c42\u5206\u5757&#xff08;Tiling&#xff09;\u3001GPU \u5149\u6805\u5316&#xff08;Rasterization&#xff09;\u4ee5\u53ca\u5408\u6210\u5668\u56fe\u5c42\u62fc\u5408&#xff08;Compositing&#xff09;&#xff0c;\u624d\u662f\u541e\u566c\u79fb\u52a8\u7aef\u82af\u7247\u7b97\u529b\u7684\u5927\u5934&#xff01; \u719f\u7ec3\u8fd0\u7528 Chrome \u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u5e38\u5e74\u88ab\u5ffd\u89c6\u7684 Rendering&#xff08;\u6e32\u67d3\u76d1\u63a7\u9762\u677f&#xff09;&#xff0c;\u6211\u4eec\u624d\u80fd\u771f\u6b63\u900f\u89c6 GPU \u5149\u6805\u5316\u5e95\u5c42\u7684\u771f\u5b9e\u74f6\u9888\u3002<\/p>\n<hr \/>\n<h3>\u4e00\u3001\u6d4f\u89c8\u5668\u6e32\u67d3\u7ba1\u7ebf\u540e\u534a\u7a0b&#xff1a;\u4ece\u7ed8\u5236\u6307\u4ee4\u5230 GPU \u5e73\u94fa\u5149\u6805\u5316<\/h3>\n<p>\u5728 Blink \u5f15\u64ce\u4e2d&#xff0c;\u5f53 JavaScript \u89e6\u53d1\u4e86\u6837\u5f0f\u53d8\u66f4\u540e&#xff0c;\u5f15\u64ce\u540e\u534a\u7a0b\u4f1a\u7ecf\u5386\u6781\u5176\u6c89\u91cd\u7684\u4e09\u4e2a\u9636\u6bb5&#xff1a;<\/p>\n<p>[JavaScript \u53d1\u4ee4] \u2500\u2500\u25ba [\u6837\u5f0f\u4e0e\u5e03\u5c40 (Style\/Layout)]<br \/>\n                             \u2502<br \/>\n                             \u25bc<br \/>\n[Paint (\u8bb0\u5f55 DisplayItemList \u7ed8\u5236\u6307\u4ee4\u5217\u8868&#xff0c;\u4ecd\u662f CPU \u77e2\u91cf\u6307\u4ee4)]<br \/>\n                             \u2502<br \/>\n                             \u25bc<br \/>\n[Commit (\u5c06\u6307\u4ee4\u6811\u63d0\u4ea4\u81f3\u5408\u6210\u5668\u7ebf\u7a0b Compositor Thread)]<br \/>\n                             \u2502<br \/>\n                             \u25bc<br \/>\n[Tiling &amp; Raster (\u56fe\u5c42\u88ab\u5207\u5206\u4e3a 256&#215;256 \u74e6\u7247&#xff0c;\u4ea4\u7531 GPU \u786c\u4ef6\u6267\u884c\u50cf\u7d20\u5149\u6805\u5316)]<br \/>\n                             \u2502<br \/>\n                             \u25bc<br \/>\n[DrawQuad &amp; SwapBuffers (GPU \u6700\u7ec8\u5c06\u4f4d\u56fe\u5408\u6210\u4e3a\u5e27\u7f13\u51b2\u8f93\u51fa\u5230\u5c4f\u5e55\u663e\u793a\u5668)]<\/p>\n<p>\u5f88\u591a\u52a8\u6548\u4e4b\u6240\u4ee5\u5728 JS \u6267\u884c\u6781\u5feb\u7684\u60c5\u51b5\u4e0b\u4f9d\u7136\u5361\u6b7b&#xff0c;\u95ee\u9898 90% \u90fd\u51fa\u5728 Paint \u9762\u79ef\u8fc7\u5927\u4e0e GPU \u5149\u6805\u5316\u74e6\u7247\u963b\u585e&#xff08;Raster Bottleneck&#xff09; \u4e0a&#xff01;<\/p>\n<hr \/>\n<h3>\u4e8c\u3001Chrome Rendering \u9762\u677f\u4e94\u5927\u7167\u5996\u955c\u5168\u89e3<\/h3>\n<p>\u6309\u4e0b\u5feb\u6377\u952e Cmd &#043; Shift &#043; P&#xff08;Mac&#xff09;\u6216 Ctrl &#043; Shift &#043; P&#xff08;Windows&#xff09;&#xff0c;\u8f93\u5165 Show Rendering&#xff0c;\u5373\u53ef\u5524\u51fa\u8fd9\u4e00\u4e13\u5c5e\u4eea\u8868\u76d8\u3002\u638c\u63e1\u4ee5\u4e0b\u4e94\u4e2a\u6838\u5fc3\u5f00\u5173&#xff0c;\u6240\u6709\u9690\u85cf\u7684\u6027\u80fd\u9690\u60a3\u5c06\u65e0\u6240\u9041\u5f62&#xff1a;<\/p>\n<h4>1. Paint Flashing&#xff08;\u7ed8\u5236\u95ea\u70c1&#xff09;&#xff1a;\u63ea\u51fa\u65e0\u610f\u4e49\u7684\u5168\u5c4f\u91cd\u7ed8<\/h4>\n<p>\u52fe\u9009\u8be5\u9879\u540e&#xff0c;\u9875\u9762\u4e0a\u53ea\u8981\u6709\u4efb\u4f55\u533a\u57df\u6b63\u5728\u88ab\u91cd\u65b0\u5149\u6805\u5316&#xff08;Repaint&#xff09;&#xff0c;\u8be5\u533a\u57df\u5c31\u4f1a\u9ad8\u4eae\u95ea\u70c1\u4e00\u6b21\u9c9c\u8273\u7684\u7eff\u8272\u8272\u5757\u3002<\/p>\n<ul>\n<li>\u6b63\u5e38\u72b6\u6001&#xff1a;\u52a8\u753b\u5728\u64ad\u653e\u65f6&#xff0c;\u53ea\u6709\u6b63\u5728\u4f4d\u79fb\u7684\u90a3\u4e2a\u72ec\u7acb\u56fe\u6807\u6216\u6587\u5b57\u5728\u95ea\u7eff&#xff0c;\u5468\u56f4\u7684\u80cc\u666f\u5361\u7247\u7edd\u5bf9\u4fdd\u6301\u5e73\u9759\u3002<\/li>\n<li>\u7ffb\u8f66\u73b0\u573a&#xff1a;\u660e\u660e\u53ea\u662f\u4fee\u6539\u4e86\u4e00\u4e2a\u5c0f\u5fbd\u7ae0\u7684\u6587\u672c&#xff0c;\u7ed3\u679c\u6574\u5f20\u5361\u7247\u751a\u81f3\u6574\u4e2a\u89c6\u53e3\u7684\u80cc\u666f\u90fd\u5728\u75af\u72c2\u9ad8\u9891\u95ea\u7eff&#xff01;\u8fd9\u8bf4\u660e\u8be5\u5143\u7d20\u6ca1\u6709\u72ec\u7acb\u5efa\u7acb\u5408\u6210\u5c42&#xff0c;\u5bfc\u81f4\u76f8\u90bb\u7684\u6240\u6709\u5144\u5f1f\u8282\u70b9\u88ab\u8feb\u5728\u6bcf\u4e00\u5e27\u91cd\u65b0\u7ecf\u5386\u6602\u8d35\u7684\u5149\u6805\u5316\u7ed8\u5236\u3002<\/li>\n<\/ul>\n<h4>2. Layer Borders&#xff08;\u56fe\u5c42\u8fb9\u754c&#xff09;&#xff1a;\u900f\u89c6\u5408\u6210\u5c42\u5185\u5b58\u4e0e\u74e6\u7247\u5207\u7247<\/h4>\n<p>\u52fe\u9009\u8be5\u9879\u540e&#xff0c;\u9875\u9762\u4f1a\u88ab\u6807\u8bb0\u51fa\u6e05\u6670\u7684\u51e0\u4f55\u8272\u6846&#xff1a;<\/p>\n<ul>\n<li>\u6a59\u8272\u7f51\u683c&#xff08;Orange Grid&#xff09;&#xff1a;\u4ee3\u8868 GPU \u5f53\u524d\u5206\u914d\u7684\u5e73\u94fa\u5149\u6805\u5316\u74e6\u7247&#xff08;Tiles&#xff0c;\u901a\u5e38\u4e3a 256\u00d7256 \u50cf\u7d20&#xff09;\u3002<\/li>\n<li>\u84dd\u8272\u8fb9\u6846&#xff08;Blue Border&#xff09;&#xff1a;\u4ee3\u8868\u72ec\u7acb\u7684\u5408\u6210\u5668\u56fe\u5c42&#xff08;GraphicsLayer&#xff09;\u3002<\/li>\n<li>\u7eff\u8272\u5916\u6846&#xff08;Green Outline&#xff09;&#xff1a;\u4ee3\u8868\u8be5\u56fe\u5c42\u6b63\u5728\u76f4\u63a5\u7531 GPU \u786c\u4ef6\u52a0\u901f\u8fdb\u884c\u52a8\u753b\u53d8\u6362\u3002<\/li>\n<li>\u6392\u67e5\u5fc3\u6cd5&#xff1a;\u5982\u679c\u5411\u4e0b\u6eda\u52a8\u65f6\u53d1\u73b0\u5c4f\u5e55\u4e0a\u7a81\u7136\u7206\u51fa\u51e0\u5341\u4e2a\u91cd\u91cd\u53e0\u53e0\u7684\u84dd\u8272\u8fb9\u6846&#xff0c;\u8bf4\u660e\u4ee3\u7801\u4e2d\u5b58\u5728\u4e25\u91cd\u7684 will-change \u6ee5\u7528\u6216\u9690\u5f0f\u56fe\u5c42\u63d0\u5347&#xff08;Layer Explosion&#xff09;\u3002<\/li>\n<\/ul>\n<h4>3. Frame Rendering Stats&#xff08;\u5b9e\u65f6\u5e27\u7387\u4e0e GPU \u6805\u683c\u5316\u4eea\u8868\u76d8&#xff09;<\/h4>\n<p>\u5728\u5c4f\u5e55\u53f3\u4e0a\u89d2\u5524\u51fa\u4e00\u4e2a\u5b9e\u65f6 HUD \u6d6e\u5c42\u3002\u5b83\u4e0d\u4ec5\u663e\u793a\u5373\u65f6 FPS&#xff0c;\u66f4\u63d0\u4f9b\u4e86\u4e00\u6761\u81f3\u5173\u91cd\u8981\u7684\u6307\u6807\u2014\u2014GPU Raster Time&#xff08;GPU \u5149\u6805\u5316\u8017\u65f6&#xff09;\u3002<\/p>\n<ul>\n<li>\u5982\u679c FPS \u5f88\u4f4e&#xff0c;\u4e14 GPU \u8017\u65f6\u67f1\u72b6\u56fe\u6301\u7eed\u98d9\u7ea2\u8d85\u8fc7 16ms&#xff0c;\u8bf4\u660e\u5f53\u524d\u754c\u9762\u7684\u7740\u8272\u5668\u590d\u6742\u5ea6\u6216 SVG \u6ee4\u955c\u5df2\u7ecf\u5f7b\u5e95\u538b\u57ae\u4e86\u79fb\u52a8\u7aef\u7684 GPU \u6838\u5fc3\u3002<\/li>\n<\/ul>\n<h4>4. Layout Shift Regions&#xff08;\u5e03\u5c40\u504f\u79fb\u533a\u57df&#xff09;&#xff1a;\u6355\u83b7 CLS \u7a81\u53d8<\/h4>\n<p>\u9875\u9762\u4e0a\u4efb\u4f55\u53d1\u751f\u51e0\u4f55\u5750\u6807\u7a81\u53d8&#xff08;\u975e\u52a8\u753b\u5f62\u5f0f\u7684\u751f\u786c\u8df3\u52a8&#xff09;\u7684\u5143\u7d20&#xff0c;\u90fd\u4f1a\u77ac\u95f4\u88ab\u7528\u4eae\u84dd\u8272\u9ad8\u4eae\u6807\u8bb0\u3002\u8fd9\u662f\u5728\u5927\u4fc3\u6392\u67e5\u5012\u8ba1\u65f6\u52a0\u8f7d\u3001\u4f18\u60e0\u5238\u7a81\u5140\u6324\u5360\u697c\u5c42\u7b49\u7834\u574f\u6027\u4f53\u9a8c\u7684\u7b2c\u4e00\u5229\u5668\u3002<\/p>\n<h4>5. Scrolling Performance Issues&#xff08;\u6eda\u52a8\u6027\u80fd\u74f6\u9888\u6807\u8bb0&#xff09;<\/h4>\n<p>\u52fe\u9009\u540e&#xff0c;\u9875\u9762\u4e0a\u6240\u6709\u672a\u6807\u8bb0 { passive: true } \u7684\u539f\u751f\u89e6\u6478\u4e8b\u4ef6\u76d1\u542c\u5668&#xff08;Touch \/ Wheel Listeners&#xff09;&#xff0c;\u4f1a\u88ab\u76f4\u63a5\u7528\u9192\u76ee\u7684\u6df1\u9ec4\u8272\u534a\u900f\u660e\u7f51\u683c\u6807\u6ce8\u51fa\u6765\u3002\u9ec4\u8272\u533a\u57df\u7684\u5b58\u5728\u76f4\u63a5\u5ba3\u544a\u4e86\u5408\u6210\u5668\u65e0\u6cd5\u72ec\u7acb\u6267\u884c\u5e73\u6ed1\u6eda\u52a8&#xff0c;\u5fc5\u987b\u5728\u6bcf\u6b21\u6ed1\u52a8\u65f6\u540c\u6b65\u7b49\u5f85\u4e3b\u7ebf\u7a0b\u56de\u8c03\u3002<\/p>\n<hr \/>\n<h3>\u4e09\u3001\u751f\u4ea7\u7ea7\u5927\u4fc3\u52a8\u6548\u6027\u80fd\u6392\u67e5\u4e0e\u8c03\u4f18\u6218\u5f79<\/h3>\n<p>\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u5728\u53cc 11 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