Keta的Web QoS机制与实现

随着Web应用的急剧增长,为了提高Web服务器的处理能力,人们提出和实现了多种Web Server结构。在此基础上,对Web应用提供性能保证和区分服务,实现QoS的控制成为目前Web发展所迫切需要解决的问题。本文针对一种非对称多线程流水线服务器结构--Keta,研究并实现了请求的分级调度控制、高负载的内容自适应降级服务等内容。实验结果表 表明,这些策略机制是有效的。

Keta's Web QoS Mechanism and Implementation

With the phenomenal growth of Web applications, in order to increase the serving ability of Web servers, many kinds of Web server architectures are proposed and implemented. In this case, it is urgent to realize a Web QoS controlling mechanism to supply performance guarantee and dipartite services for Web applications. Keta is a new asymmetrical multi-thread pipeline Web server. This paper implements the classifying and scheduling mechanism of requests and supplies content-adaptive degraded services when the Web server is overloaded. The data of experiments verify the mechanism.