Design and evaluation of dynamic resource management scheme for high-performance web proxy servers

摘要

In the current Internet, a significant amount of Web document transfer requests are through Web proxy servers. In this paper, we propose a new resource management scheme for Web proxy servers to improve their performance and to reduce Web document transfer time via the Web proxy servers. Our proposed scheme has two components. One is an enhanced E.AIBT (Equation-based Automatic TCP Buffer Tuning), which assigns send socket buffer to TCP connections on the proxy servers according to their characteristics and network condition. The other is a scheme that manages persistent TCP connections or' Web proxy servers to avoid rejecting the newly arriving TCP connections due to lack of their resources. We validate an effectiveness of our proposed scheme through simulation experiments. We also discuss implementation issues of our proposed scheme on the actual Web proxy servers.