Article

An evaluation of TCP splice benefits in web proxy servers

Authors:

Marcel-Cǎtǎlin Roşu,

Daniela RoşuAuthors Info & Claims

WWW '02: Proceedings of the 11th international conference on World Wide Web

Pages 13 - 24

https://doi.org/10.1145/511446.511449

Published: 07 May 2002 Publication History

Abstract

This study is the first to evaluate the performance benefits of using the recently proposed TCP Splice kernel service in Web proxy servers. Previous studies show that splicing client and server TCP connections in the IP layer improves the throughput of proxy servers like firewalls and content routers by reducing the data transfer overheads. In a Web proxy server, data transfer overheads represent a relatively large fraction of the request processing overheads, in particular when content is not cacheable or the proxy cache is memory-based. The study is conducted with a socket-level implementation of TCP Splice. Compared to IP-level implementations, socket-level implementations make possible the splicing of connections with different TCP characteristics, and improve response times by reducing recovery delay after a packet loss. The experimental evaluation is focused on HTTP request types for which the proxy can fully exploit the TCP Splice service, which are the requests for non-cacheabl.content and SSL tunneling. The experimental testbed includes an emulated WAN environment and benchmark applications for HTTP/1.0 Web client, Web server, and Web proxy running on AIX RS/6000 machines. Our experiments demonstrate that TCP Splice enables reductions in CPU utilization of 10-43% of the CPU, depending on file sizes and request rates. Larger relative reductions are observed when tunneling SSL connections, in particular for small file transfers. Response times are also reduced by up to 1.8sec.

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Cited By

Galán-Jiménez JZhani MJesús Martín León LKaippallimalil J(2024)Transport Assistants to Enhance TCP Performance: Analysis of the Packet Delivery DelayNOMS 2024-2024 IEEE Network Operations and Management Symposium10.1109/NOMS59830.2024.10575037(1-5)Online publication date: 6-May-2024
https://doi.org/10.1109/NOMS59830.2024.10575037
Butrovich MRamanathan KRollinson JLim WZhang WSherry JPavlo A(2023)Tigger: A Database Proxy That Bounces with User-BypassProceedings of the VLDB Endowment10.14778/3611479.361153016:11(3335-3348)Online publication date: 24-Aug-2023
https://doi.org/10.14778/3611479.3611530
Toledo KBreitgand DLorenz DKeslassy I(2023)CloudPilotComputer Networks: The International Journal of Computer and Telecommunications Networking10.1016/j.comnet.2023.109610224:COnline publication date: 1-Apr-2023
https://dl.acm.org/doi/10.1016/j.comnet.2023.109610
Show More Cited By

Index Terms

An evaluation of TCP splice benefits in web proxy servers
1. General and reference
  1. Cross-computing tools and techniques
    1. Measurement
2. Software and its engineering
  1. Software organization and properties
    1. Contextual software domains
      1. Operating systems
        Communications management

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cover image ACM Conferences

WWW '02: Proceedings of the 11th international conference on World Wide Web

May 2002

754 pages

ISBN:1581134495

DOI:10.1145/511446

Conference Chairs:
David Lassner
University of Hawaii
,
Dave De Roure
University of Southampton
,
Arun Iyengar
IBM T.J. Watson Research Center

Copyright © 2002 ACM.

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Published: 07 May 2002

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WWW02: Hypermedia Track of the Eleventh International World-Wide Web Conference

May 7 - 11, 2002

Hawaii, Honolulu, USA

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Overall Acceptance Rate 1,899 of 8,196 submissions, 23%

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Cited By

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https://doi.org/10.1109/NOMS59830.2024.10575037
Butrovich MRamanathan KRollinson JLim WZhang WSherry JPavlo A(2023)Tigger: A Database Proxy That Bounces with User-BypassProceedings of the VLDB Endowment10.14778/3611479.361153016:11(3335-3348)Online publication date: 24-Aug-2023
https://doi.org/10.14778/3611479.3611530
Toledo KBreitgand DLorenz DKeslassy I(2023)CloudPilotComputer Networks: The International Journal of Computer and Telecommunications Networking10.1016/j.comnet.2023.109610224:COnline publication date: 1-Apr-2023
https://dl.acm.org/doi/10.1016/j.comnet.2023.109610
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Flavel AMani PMaltz DHolt NLiu JChen YSurmachev OBarham PKrishnamurthy A(2015)FastRouteProceedings of the 12th USENIX Conference on Networked Systems Design and Implementation10.5555/2789770.2789797(381-394)Online publication date: 4-May-2015
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Wang LManner J(2013)Energy-efficient mobile web in a bundleComputer Networks: The International Journal of Computer and Telecommunications Networking10.1016/j.comnet.2013.08.00657:17(3581-3600)Online publication date: 1-Dec-2013
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Gilly KJuiz CPuigjaner R(2011)An up-to-date survey in web load balancingWorld Wide Web10.1007/s11280-010-0101-514:2(105-131)Online publication date: 1-Mar-2011
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Pathak AWang YHuang CGreenberg AHu YKern RLi JRoss K(2010)Measuring and evaluating TCP splitting for cloud servicesProceedings of the 11th international conference on Passive and active measurement10.5555/1889324.1889329(41-50)Online publication date: 7-Apr-2010
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