javascript CPU 使用率高的网页——如何分析
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Web page with high CPU usage -- how to profile
提问by mrzasa
I have a webpage to optimize. When I enter it, the CPU usage increases drastically. I tried to use Chrome Dev Tools, but profiler 92% of the time is in the (program)line. What could I do to find the culprit of this behavior?
我有一个网页要优化。当我输入它时，CPU使用率急剧增加。我尝试使用 Chrome 开发工具，但分析器 92% 的时间都(program)在行中。我该怎么做才能找到这种行为的罪魁祸首？
回答by George
I've had the same issues before. I don't have a lot of experience using Chrome Dev Tools but here are some useful links:
我以前也遇到过同样的问题。我没有很多使用 Chrome Dev Tools 的经验，但这里有一些有用的链接：
回答by loislo
Please use Timeline panel. It will show you what the page does. It shows information about javascript calls, gc, layout, paint etc.
请使用时间轴面板。它将向您展示该页面的作用。它显示有关 javascript 调用、gc、布局、绘制等的信息。
https://developers.google.com/chrome-developer-tools/docs/timeline
https://developers.google.com/chrome-developer-tools/docs/timeline
