Multicache-Based Content Management for Web Caching

Large scale web caches are in fact localized sources of web contents. Besides replacement policies, which decide the contents of a cache, the management of such contents is an issue of special significance to web caching. This paper introduces our ongoing work on the research of cache content management. We propose a multicache based content management scheme in which web contents are distributed to several subcaches rather than maintained in a monolithic priority queue. This scheme is suitable for managing large cache space and capable of implementing sophisticated control logic. The efficiency of this scheme is demonstrated by design and implementation of a new replacement policy. Trace-driven simulations are used to evaluate these results.