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Extending Proxy Caching Capability: Issues and Performance

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Abstract

Proxy caching is an effective approach to reduce the response latency to client requests, web server load, and network traffic. Recently there has been a major shift in the usage of the Web. Emerging web applications require increasing amount of server-side processing. Current proxy protocols do not support caching and execution of web processing units. In this paper, we present a weblet environment, in which, processing units on web servers are implemented as weblets. These weblets can migrate from web servers to proxy servers to perform required computation and provide faster responses. Weblet engine is developed to provide the execution environment on proxy servers as well as web servers to facilitate uniform weblet execution. We have conducted thorough experimental studies to investigate the performance of the weblet approach. We modify the industrial standard e-commerce benchmark TPC-W to fit the weblet model and use its workload model for performance comparisons. The experimental results show that the weblet environment significantly improves system performance in terms of client response latency, web server throughput, and workload. Our prototype weblet system also demonstrates the feasibility of integrating weblet environment with current web/proxy infrastructure.

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Authors and Affiliations

  1. Department of Computer Science, University of Texas at Dallas, Dallas, TX, USA

    Wei Hao, Jicheng Fu, Jiang He, I-Ling Yen & Farokh Bastani

  2. Department of Computer Science, Virginia Tech, Northern Virginia Graduate Center, Alexandria, VA, USA

    Ing-Ray Chen

Authors
  1. Wei Hao
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  2. Jicheng Fu
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  3. Jiang He
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  4. I-Ling Yen
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  5. Farokh Bastani
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  6. Ing-Ray Chen
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Correspondence to Wei Hao.

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Hao, W., Fu, J., He, J. et al. Extending Proxy Caching Capability: Issues and Performance. World Wide Web 9, 253–275 (2006). https://doi.org/10.1007/s11280-006-8556-0

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  • DOI: https://doi.org/10.1007/s11280-006-8556-0

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