A Business-Oriented Approach to the Design of Feedback Loops for Performance Management

Yixin Diao, Joseph L. Hellerstein, Sujay Parekh

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

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This paper proposes an approach to automated enforcement of service level agreements (SLAs) by constructing information technology (IT) level feedback loops (e.g., admission control, CPU scheduling, load balancing) that achieve business objectives, especially maximizing SLA profits. We develop a framework in which profits are determined by revenues accrued for services delivered (e.g., completed transactions) and rebates to customers if services are unavailable or violate response time constraints. A methodology is described for profit-oriented controller design, and the methodology is applied to a Lotus Notes email server. The methodology relies heavily on modeling design choices to reduce the need for running live experiments. We show that simple linear models suffice to capture the dynamics of the email server we study, even for a time varying workload. In addition, our studies suggest that faster controllers (those with short settling times) consistently provide the best profits since they violate response time constraints less often and they do not sacrifice as much revenue. Last, our studies show that the selection of controller reference value has a significant impact on profits.
Original languageEnglish
Title of host publicationOperations & Management
Subtitle of host publication12th International Workshop on Distributed Systems, DSOM 2001, Nancy, France, October 15-17, 2001: Proceedings
EditorsOlivier Festor, Aiko Pras
Place of PublicationRocquencourt
Number of pages12
ISBN (Print)9782726111901
Publication statusPublished - 2001
Externally publishedYes
Event12th IEEE/IFIP International Workshop on Distributed Systems, DSOM 2001: Internet Services: Management Beyond the Element - Nancy, France
Duration: 15 Oct 200117 Oct 2001
Conference number: 12


Conference12th IEEE/IFIP International Workshop on Distributed Systems, DSOM 2001
Abbreviated titleDSOM
Internet address


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