Class-based latency assurances for web servers

Yaya Wei*, Chuang Lin, Xiaowen CHU, Zhiguang Shan, Fengyuan Ren

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

5 Citations (Scopus)


This paper presents a fuzzy control approach for process assignment in order to guarantee absolute percentile delay in web servers. Comparing with mean delay used in previous works, percentile delay introduces strong nonlinearities to the plant; it is therefore difficult to achieve satisfactory performance by a linear controller, which is commonly used to guarantee mean delay performance. In this paper we propose a fuzzy controller. Its key feature is independence of the plant and robust to model uncertainty, which is very suitable to the strong nonlinear web servers. The experiments have demonstrated the efficiency of the proposed fuzzy controller in handing the variety of requests.

Original languageEnglish
Title of host publicationHigh Performance Computing and Communcations - First International Conference, HPCC 2005, Proceedings
Number of pages7
Publication statusPublished - 2005
Event1st International Conference on High Performance Computing and Communcations, HPCC 2005 - Sorrento, Italy
Duration: 21 Sept 200523 Sept 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3726 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference1st International Conference on High Performance Computing and Communcations, HPCC 2005

Scopus Subject Areas

  • Theoretical Computer Science
  • Computer Science(all)

User-Defined Keywords

  • Fuzzy control
  • Quality of service (QoS)
  • Resource assignment
  • Web server


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