Stochastic models of load balancing and scheduling in cloud computing clusters

Cloud computing services are becoming ubiquitous, and are starting to serve as the primary source of computing power for both enterprises and personal computing applications. We consider a stochastic model of a cloud computing cluster, where jobs arrive according to a stochastic process and request...

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Bibliographic Details
Published in2012 Proceedings IEEE INFOCOM pp. 702 - 710
Main Authors Maguluri, S. T., Srikant, R., Lei Ying
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2012
Subjects
Cloud computing
Resource management
Routing
Servers
Stochastic processes
Throughput
Vectors
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Summary:Cloud computing services are becoming ubiquitous, and are starting to serve as the primary source of computing power for both enterprises and personal computing applications. We consider a stochastic model of a cloud computing cluster, where jobs arrive according to a stochastic process and request virtual machines (VMs), which are specified in terms of resources such as CPU, memory and storage space. While there are many design issues associated with such systems, here we focus only on resource allocation problems, such as the design of algorithms for load balancing among servers, and algorithms for scheduling VM configurations. Given our model of a cloud, we first define its capacity, i.e., the maximum rates at which jobs can be processed in such a system. Then, we show that the widely-used Best-Fit scheduling algorithm is not throughput-optimal, and present alternatives which achieve any arbitrary fraction of the capacity region of the cloud. We then study the delay performance of these alternative algorithms through simulations.
ISBN:9781467307734
1467307734
ISSN:0743-166X
DOI:10.1109/INFCOM.2012.6195815