Abstract

With the dramatic explosion of online information, the Internet is undergoing a transition from a data communication infrastructure to a global information utility. PDAs, wireless phones, webenabled vehicles, modem PCs and high-end workstations can be viewed as appliances that "plugin " to this utility for information. The increasing diversity of such appliances calls for an architecture for performance differentiation of information access. The key performance accelerator on the Internet is the caching and content distribution infrastructure. While many research efforts addressed performance differentiation in the network and on web servers, providing multiple levels of service in the caching system has received much less attention.

Citations