新算法能将网页加载速度提高34%_html/css_WEB-ITnose
MIT计算机科学和人工智能实验室与哈佛的研究人员开发了名为 Polaris 的算法，能减少34%总页面加载时间。当我们访问一个网站，首先是在浏览器地址栏输入域名，DNS服务器将域名转换成托管网站的服务器IP地址，然后浏览器会下载网站的索引文件，一个HTML页面。在HTML页面内，网站源代码会加载以CSS和JS文件、图像、Flash等形式的不同资源，每个资源都有独立的网络请求，建立网络请求所需的时间是导致网页加载缓慢的主要原因。为了解决这个问题，Polaris框架为每个页面绘制一个依赖图，以最优次序加载所需的页面资源。研究人员的测试 显示 ， Polaris平均能将页面加载速度减少34%。
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