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Publications by Type: Technical Reports

On the Benefit of Virtualization: Strategies for Flexible Server Allocation
Zitatschlüssel AFSS-OTBOV-10
Autor Arora, Dushyant and Feldmann, Anja and Schaffrath, Gregor and Schmid, Stefan
Jahr 2010
Monat November
Notiz ID arXiv:1011.6594
Institution arXiv
Zusammenfassung Virtualization technology facilitates a dynamic, demand-driven allocation and migration of servers. This paper studies how the flexibility offered by network virtualization can be used to improve Quality-of-Service parameters such as latency, while taking into account allocation costs. A generic use case is considered where both the overall demand issued for a certain service (for example, an SAP application in the cloud, or a gaming application) as well as the origins of the requests change over time (e.g., due to time zone effects or due to user mobility), and we present online and optimal offline strategies to compute the number and location of the servers implementing this service. These algorithms also allow us to study the fundamental benefits of dynamic resource allocation compared to static systems. Our simulation results confirm our expectations that the gain of flexible server allocation is particularly high in scenarios with moderate dynamics.
Typ der Publikation Technical Report
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