Sciweavers

Share
ICPP
2003
IEEE

Accurately Modeling Workload Interactions for Deploying Prefetching in Web Servers

9 years 11 months ago
Accurately Modeling Workload Interactions for Deploying Prefetching in Web Servers
Although Web prefetching is regarded as an effective method to improve client access performance, the associated overhead prevents it from being widely deployed. Specifically, a major weakness in existing Web servers is that prefetching activities are scheduled independently of dynamically changing server workloads. Without proper control and coordination between the two kinds of activities, prefetching can negatively affect the Web services and degrade Web access performance. In this paper, we first develop an open queuing model to characterize detailed transactions in Web servers. Using this model, we analyze server resource utilization and average response time with different request arrival rates when prefetching is involved under different kinds of Web services. Guided by this model, we then design a responsive and adaptive prefetching scheme that dynamically adjusts the prefetching aggressiveness in Web servers. Our scheme not only prevents the Web servers from being overloade...
Xin Chen, Xiaodong Zhang
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where ICPP
Authors Xin Chen, Xiaodong Zhang
Comments (0)
books