Improving HTTP performance using "stateless" TCP

Authors:
David A. Hayes;Michael Welzl;Grenville Armitage;Mattia Rossi
Affiliations:
Swinburne University of Technology, Melbourne, Australia;University of Oslo, Oslo, Norway;Swinburne University of Technology, Melbourne, Australia;Swinburne University of Technology, Melbourne, Australia
Venue:
Proceedings of the 21st international workshop on Network and operating systems support for digital audio and video
Year:
2011

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Abstract

TCP is quite a heavyweight protocol when serving very small web pages. We introduce a server-side kernel modification which enables a web server to perform HTTP over a UDP socket while the kernel provides a regular TCP interface 'on the wire' to remote clients. We show that our "stateless" TCP modification can greatly reduce a server's CPU usage (20%) and TCP related memory requirements(90%), potentially enabling it to serve small web pages even under extreme overload conditions.