Studying the impact of more complete server information on Web caching

Authors:
C. E. Wills;M. Mikhailov
Affiliations:
Computer Science Department, Worcester Polytechnic Institute, Worcester, MA 01609, USA;Computer Science Department, Worcester Polytechnic Institute, Worcester, MA 01609, USA
Venue:
Computer Communications
Year:
2001

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Abstract

Caching of objects in the World Wide Web is a widely used technique to reduce end-user latencies, network and server load. Currently deployed heuristic-based approaches to caching result in a large number of unnecessary validations, and prior results show potential for better reuse of cached Web content. This work studies a more deterministic approach to caching of Web objects. The idea is to view HTML pages as containers, holding distinct objects with heterogeneous type and change characteristics. Servers compile information about relationships between containers and embedded objects and piggyback it onto existing request/response traffic. Our results indicate that these techniques significantly improve existing cache management strategies.