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D. Albeseder:
"Evaluation of Message Delay Correlation in Distributed Systems";
Vortrag: 3rd Workshop on Intelligent Solutions in Embedded Systems (WISES'05), Hamburg, Deutschland; 20.05.2005; in: "Proceedings of the Third International Workshop on Intelligent Solutions in Embedded Systems", (2005), S. 139 - 150.

Partially synchronous computational models fall in between synchronous models, which are demanding in terms of requirements but admit solutions to most of the important fault-tolerant distributed computing problems, and the purely asynchronous model, where this is not the case. The Theta-Model is a recently presented partially synchronous model close to pure asynchrony. It just assumes a bound on the ratio of maximum vs. minimum end-to-end delays of messages simultaneously in transit. This paper provides experimental evidence for the assumed correlation of end-to-end delays in some common type of distributed systems: Using a comprehensive custom evaluation framework, we measured the end-to-end delays in a simple clock synchronization algorithm running on a Fast-Ethernet network connecting Linux workstations. Our results reveal a significant correlation between maximum and minimum delay under several load conditions, and hence confirm that the bounded ratio assumption of the Theta-Model is well-founded

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05936323