Zhang Xingjun1,Qian Depei1£¬Wu Weiguo1£¬Zhu Li2£¬Liu Tao1
(1.School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an ””710049,China;2.School of Software,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract:In order to improve the hit ratio and byte hit ratio of Web caching£¬ a new replacement algorithm£¬site-role based (SRB)£¬is proposed after investigating the factors which are related to the replacement operations. In addition to the consideration of the recently existing time£¬the size£¬and the access cost of the documents£¬the role played by the site in the proxy server is also defined. Our trace-driven simulation experiments show that the performance of SRB is superior to other Web cache replacement policies.
Keywords:Web caching£»site role£»replacement algorithm£»trace-driven