The phenomenal growth of the world wide web has made it the most popular Internet application today. Web caching has been recognized as an important vehicle to mitigate web traffic explosion.
Proxy caches reduce the number of web accesses across the network backbones.
Unfortunately, the current proxy caching schemes are quickly becoming inadequate for two different reasons. First, present Internet applications are becoming increasingly diverse in their QoS requirements. The existing caching infrastructure, however, treats all clients and content alike. We propose to investigate QoS-aware caching policies for future web applications with QoS requirements. Such caching policies will be fundamentally different from the ones that exist today.