On dominating set allocation policies in real-time wide-area distributed systems

Chengdu Huang, Tarek Abdelzaher, Xue Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper investigates resource allocation policies for achieving real-time content distribution with subsecond delay bounds on the current Internet. Resource allocation in real-time systems has been concerned primarily with meeting time constraints on single processors and multiprocessors. On a single processor, the main degree of freedom available for the real-time designer is the scheduling policy. On a (partitioned) multiprocessor, a second degree of freedom is the partitioning policy. This paper explores a third degree of freedom unique to large-scale (i.e., widearea) distributed systems with non-negligible communication delays among individual nodes. We call it the dominating set allocation policy. This policy is a primary determinant of schedulability in such systems. We present some initial steps towards understanding the properties of different dominating set allocation policies in terms of resulting task schedulability. We describe an optimal dominating set allocation algorithm (subject to certain design decisions), propose a number of simple heuristics, and evaluate them using realistic Internet measurements and HTTP workload. The key contribution of this paper lies in the practical applicability of the proposed heuristics in achieving delay guarantees (with a high probability) over best-effort wide-area networks.

Original languageEnglish (US)
Title of host publicationProceedings - 19th Euromicro Conference on Real-Time Systems, ECRTS 2007
Pages223-234
Number of pages12
DOIs
StatePublished - Oct 23 2007
Event19th Euromicro Conference on Real-Time Systems, ECRTS 2007 - Pisa, Italy
Duration: Jul 4 2007Jul 6 2007

Publication series

NameProceedings - Euromicro Conference on Real-Time Systems
ISSN (Print)1068-3070

Other

Other19th Euromicro Conference on Real-Time Systems, ECRTS 2007
CountryItaly
CityPisa
Period7/4/077/6/07

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture

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