Measuring End-to-End Internet Service Performance
نویسندگان
چکیده
Understanding and measuring end to end service performance perceived by the clients is a chal lenging task Client perceived web site responses are downloaded web pages Typically a web page is composed from multiple objects a main HTML le and several embedded objects such as images However HTTP does not provide any means to delimit the beginning or the end of a web page to e ectively measure the overall response time for web page retrieval This paper presents EtE monitor a novel approach to measuring web site performance Our system passively collects packet traces from a server site to determine service performance characteristics We introduce a two pass heuristic and a statistical ltering mechanism to accurately reconstruct di erent client page accesses and to measure performance characteristics integrated across all client accesses Relative to existing approaches EtE monitor o ers the following bene ts i a latency breakdown between the network and server overhead of retrieving a web page ii longitudinal information for all client accesses not just the subset probed by a third party iii characteristics of accesses that are aborted by clients and iv quan ti cation of the bene ts of network and browser caches on server performance Our initial implementation and performance analysis across three di erent commercial web sites con rm the utility of our approach
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