On Performance of Caching Proxies
نویسندگان
چکیده
This paper presents a performance study of the state-of-the-art caching proxy called Squid. We instrumented Squid to measure per request network and disk activities and conducted a series of experiments on large Web caches. We have discovered many interesting and consistent patterns across a wide variety of environments. Our data and analysis are essential for understanding, modeling, benchmarking, and tuning performance of a proxy server.
منابع مشابه
Performance of Web Proxy Caching in Heterogeneous Bandwidth Environments
Much work on the performance of Web proxy caching has focused on high-level metrics such as hit rates, but has ignored low-level details such as cookies, aborted connections, and persistent connections between clients and proxies as well as between proxies and servers. These details have a strong impact on performance, particularly in heterogeneous bandwidth environments where network speeds be...
متن کاملImproving WWW Proxies Performance with Greedy-Dual- Size-Frequency Caching Policy
Web, HTTP, WWW proxies, caching policies, replacement algorithms, performance Web proxy caches are used to improve performance of the WWW. Since the majority of Web documents are static documents, caching them at WWW proxies reduces both network traffic and response time. One of the keys to better proxy cache performance is an efficient caching policy which keeps in the cache popular documents ...
متن کاملCOPACC: A Cooperative Proxy-Client Caching System for On-Demand Media Streaming
Proxy caching is a key technique to reduce transmission cost for on-demand multimedia streaming. The effectiveness of current caching schemes, however, is limited by the insufficient storage space and weak cooperations among proxies and their clients, particularly considering the high bandwidth demands from media objects. In this paper, we propose COPACC, a cooperative proxy-and-client caching ...
متن کاملProxy Ecology - Cooperative Proxies with Artificial Life
Proxy servers have been widely used by institutions to serve their clients behind firewalls. Recently many schemes have been proposed to organize the proxy servers into a cooperative proxy cache system. However most of existing proxy cache schemes require manual configuration of the cooperative proxies based on the network architecture. In this paper, we propose a novel P2P proxy caching scheme...
متن کاملEvaluation of performance enhancing proxies in internet over satellite
Performance enhancing proxies (PEPs) are widely used to improve the performance of TCP over high delaybandwidth product links and links with high error probability. In this paper we analyze the performance of using TCP connection splitting in combination with web caching via traces obtained from a commercial satellite system. We examine the resulting performance gain under different scenarios, ...
متن کاملOn the Scale and Performance of Cooperative Web Proxy Caching
While algorithms for cooperative proxy caching have been widely studied, little is understood about the performance of cooperative caching in the Web environment as it scales to large client populations. This paper uses both tracebased analysis and analytic modelling to show the potential advantages and drawbacks of inter-proxy cooperation. With our traces, we evaluate quantitatively the perfor...
متن کامل