动态网页分发加速技术研究

Reaserch on Techniques for Efficient Delivery of Dynamic Web Pages

随着Web技术的迅速发展,动态和个性化网页的比重日益增加,而传统缓存一般只适用于静态内容,难以减少获取动态网页所需的流量和延时代价。为了更有效地分发动态网页,人们提出了各种动态内容加速方案。文中研究了典型的动态网页分发加速方法,并对相关的加速技术进行了分析和比较。针对ESI和CDE这两种技术的优缺点,提出基于共享片段的动态网页分发加速模型。实验结果表明,与ESI和CDE相比,该模型可以节省更多的带宽,减少更多的延时。

With the rapid development of the Web, dynamic and personalized Web pages increase gradually. However, traditional Web caching is commonly applicable to static content, and is hard to reduce the traffic and latency in retrieving dynamic Web pages. In order to deliver dynamic Web pages more efficiently, researchers proposed some kinds of schemes for accelerating dynamic content. Classical techniques for efficient delivery of dynamic Web pages are studied in this paper, then the accelerating techniques are analyzed and compared. In view of the advantages and disadvantages of ESI and CDE, a new model of dynamic Web pages for efficient delivery based on shared fragments is presented and discussed. Experimental results show that the model can provide more bandwidth savings and latency reduction than existing solutions ESI and CDE.