Sciweavers

Share
WWW
2005
ACM

Design and implementation of a feedback controller for slowdown differentiation on internet servers

9 years 9 months ago
Design and implementation of a feedback controller for slowdown differentiation on internet servers
Proportional slowdown differentiation (PSD) aims to maintain slowdown ratios between different classes of clients according to their pre-specified differentiation parameters. In this paper, we design a feedback controller to allocate processing rate on Internet servers for PSD. In this approach, the processing rate of a class is adjusted by an integral feedback controller according to the difference between the target slowdown ratio and the achieved one. The initial rate class is estimated based on predicted workload using queueing theory. We implement the feedback controller in an Apache Web server. The experimental results under various environments demonstrate the controller's effectiveness and robustness. Categories and Subject Descriptors: C.4 [Computer Systems Organization]: Performance of Systems General Terms: Performance.
Jianbin Wei, Cheng-Zhong Xu
Added 22 Nov 2009
Updated 22 Nov 2009
Type Conference
Year 2005
Where WWW
Authors Jianbin Wei, Cheng-Zhong Xu
Comments (0)
books