Rethinking Energy-Performance Trade-Off in Mobile Web Page Loading
Rethinking Energy-Performance Trade-Off in Mobile Web Page Loading
复制标题
DOI：
10.1145/2789168.2790103
复制
发表时间：
2015-09
期刊：
影响因子：
--
通讯作者：
D. H. Bui;Yunxin Liu;Hyosu Kim;I. Shin;Feng Zhao
中科院分区：
文献类型：
--
作者：
D. H. Bui;Yunxin Liu;Hyosu Kim;I. Shin;Feng Zhao
网页浏览是移动设备上的一个关键应用。然而，移动浏览器在很大程度上是针对性能进行优化的，这给耗电的移动设备带来了巨大的负担。在这项工作中，我们的目标是减少在智能手机上加载网页所消耗的能量，最好是在不增加页面加载时间和损害用户体验的情况下。为此，我们首先研究了智能手机上网页加载的内部机制，并确定了其能效低下的行为。基于我们的发现，我们得出了节能网页加载的一般设计原则，并将这些原则应用于开源的Chromium浏览器，并将我们的技术应用于商用智能手机。实验结果表明，我们的技术能够在最新一代的大屏幕上实现平均24.4%的系统节能。LITTLE智能手机使用WiFi（使用3G时节省22.5%），同时不增加平均页面加载时间。我们还表明，我们提出的技术可以平均节省10.5%的系统能源，并使移动Firefox web浏览器的页面加载时间增加1.69%。用户研究结果表明，如此小的页面加载时间增加几乎无法察觉。
Web browsing is a key application on mobile devices. However, mobile browsers are largely optimized for performance, imposing a significant burden on power-hungry mobile devices. In this work, we aim to reduce the energy consumed to load web pages on smartphones, preferably without increasing page load time and compromising user experience. To this end, we first study the internals of web page loading on smartphones and identify its energy-inefficient behaviors. Based on our findings, we then derive general design principles for energy-efficient web page loading, and apply these principles to the open-source Chromium browser and implement our techniques on commercial smartphones. Experimental results show that our techniques are able to achieve a 24.4% average system energy saving for Chromium on a latest-generation big.LITTLE smartphone using WiFi (a 22.5% saving when using 3G), while not increasing average page load time. We also show that our proposed techniques can bring a 10.5% system energy saving on average with a small 1.69\% increase in page load time for mobile Firefox web browser. User study results indicate that such a small increase in page load time is hardly perceivable.