Tamás Bérczes, János Sztrik
Performance evaluation of Proxy Cache Servers
Due to the rapid growth of internet users, the Web traffic also grows very fast. The primary aim of the present paper is to modify the performance model of Bose and Cheng to a more realistic case when external arrivals are also allowed to the remote Web servers and the Web servers have limited buffer capacity. We analyze how many parameters affect the performance of a Proxy Cache Server (PCS). Numerical results are obtained for the overall response time with and without a PCS. The numerics show that the benefit of a PCS depends on various factors. It is noticed that by increasing the cache hit rate or the external arrival rates the overall response time is smaller in case of installing a PCS.