Home Web Front-end HTML Tutorial How I discovered and solved the problem of project page rendering efficiency (use of IE debugging tool profiler)_html/css_WEB-ITnose

How I discovered and solved the problem of project page rendering efficiency (use of IE debugging tool profiler)_html/css_WEB-ITnose

Jun 24, 2016 pm 12:27 PM

#我是怎么发现并解决项目页面渲染效率问题的(IE调试工具探查器的使用)##背景之前的项目中,有很多的登记页面,一般都有100-200甚至更加多的字段,而且还涉及到字典、日期及其他效果的显示,载入时很慢,而且会有卡死的现象,IE下特别明显##IE调试工具探查器的使用当时找了不少资料,不过最后还是把目光聚焦到IE自带的调试工具了目前我电脑里面的是IE10,当时分析时用的是IE9,里面有一页**探查器**引起了我的注意,经过一轮的折腾,掌握了其分析方法如下:1. 打开要分析的页面,F12进入开发人员工具,并切换到**探查器**页面2. 在点击`开始采样`后进行一系列的操作(由于我的问题是载入页面的效率,自然是刷新页面),结束后再次点击该按钮3. 则会有结果,把视图切换成` 调用树`,则最耗时的函数调用就会一目了然![探查器](http://images.cnitblog.com/blog/84053/201402/081733408821679.jpg)##找到问题用这个方法分析了一下 [示范页面](http://p2227.github.io/demo/applyLayout/elayout.html),对于结果层层展开(抽丝剥茧)后,终于发现罪魁祸首了:![耗时函数](http://images.cnitblog.com/blog/84053/201402/081740283894518.jpg)原来是easyui的下拉框、日期框及布局组件最耗时。知道问题所在,就可以针对地解决了。##解决结果于是经过一翻的调整,重新定义了页面和HTML结构,使得效率有了大的提升[调整后的页面](http://p2227.github.io/demo/applyLayout/playout.html)![调整后的效率](http://images.cnitblog.com/blog/84053/201402/081755503737248.jpg)##解决过程小结* [详细方案](http://www.cnblogs.com/p2227/p/3541162.html)
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