Differentiated caching services: A control-theoretical approach

Y. Lu, A. Saxena, T. F. Abdelzaher

Research output: Contribution to conferencePaperpeer-review


The increasing diversity of Internet appliances calls for an architecture for performance differentiation on information access. The World Wide Web is the dominant interface for information access today. Web proxy caching is the key performance accelerator in the web infrastructure. While many research efforts addressed performance differentiation in the network and on web servers, providing multiple levels of service in proxy caches has received much less attention. This paper has two main contributions. First, we describe, implement, and evaluate an architecture for differentiated content caching services as a key element of the Internet infrastructure. Second, we describe a control-theoretical approach that lays well-understood theoretical foundations for resource management to achieve performance differentiation in proxy caches. We describe our experiences with implementing the differentiated caching services scheme is Squid, a popular proxy cache used by many ISPs today. Experimental study and analyses prove that differentiated caching services provide significantly better performance to the premium content classes.

Original languageEnglish (US)
Number of pages8
StatePublished - 2001
Externally publishedYes
Event21st IEEE International Conference on Distributed Computing Systems - Mesa, AZ, United States
Duration: Apr 16 2001Apr 19 2001


Other21st IEEE International Conference on Distributed Computing Systems
Country/TerritoryUnited States
CityMesa, AZ

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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