Towards Predictable Overload Control of Large Real-Time Server Systems

This project aims at mechanisms for overload protection and service differentiation in web servers. I pursue the research within the PAMP project. The work was started while I did an Internship at IBM Watson. This work focused on efficient overload and service differentiation mechanisms implemented in the kernel of the operating system. In the project, I am extending this work in various aspects.

PhD Thesis

I am currently writing my PhD thesis which I will defend at the end of May. For my thesis, look at this web page

Documents and Publications

Documents

Project Plan (ps)
Project Poster (ppt)

Publications within this project

Andy Bavier, Thiemo Voigt, Mike Wawrzoniak, Larry Peterson and Per Gunningberg SILK: Scout Paths in the Linux Kernel
Thiemo Voigt and Per Gunningberg Handling Multiple Bottlenecks in Web Servers Using Adaptive Inbound Controls (prel. version!)
Seventh International Workshop on Protocols For High-Speed Networks, April 2002, Berlin, Germany.
Thiemo Voigt and Per Gunningberg Handling Persistent Connections in Overloaded Web Servers Real-Time in Sweden 2001 talk(pdf)
Thiemo Voigt and Per Gunningberg Kernel-based Control of Persistent Web Server Connections Performance and Architecture of web Servers (PAWS)
Thiemo Voigt, Renu Tewari, Douglas Freimuth and Ashish Mehra. Kernel Mechanisms for Service Differentiation in Overloaded Web Servers 2001 Usenix Annual Technical Conference
Thiemo Voigt and Per Gunningberg Dealing with Memory-intensive Web Requests Technical Report 2001-010, Department of Information Technology, Uppsala University, May 2001
Thiemo Voigt, Renu Tewari and Ashish Mehra. In-Kernel Mechanisms for Adaptive Control of Overloaded Web Servers Eunice Open European Summer School Sept. 2000, Twente, Holland.