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Resource allocation for session-based 2D service differentiation on e-commerce servers
Xiaobo Zhou1; Jianbin Wei2; Cheng-Zhong Xu2
2006-08
Source PublicationIEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
ISSN1045-9219
Volume17Issue:8Pages:838 - 850
Abstract

A scalable e-commerce server should be able to provide different levels of quality of service (QoS) to different types of requests based on clients’ navigation patterns and the server capacity. E-Commerce workloads are composed of sessions. In this paper, we propose a session-based two-dimensional (2D) service differentiation model for online transactions: intersession and intrasession. The intersession model aims to provide different levels of QoS to sessions from different customer classes, and the intrasession model aims to provide different levels of QoS to requests in different states of a session. A primary performance metric of online transactions is slowdown. It measures the waiting time of a request relative to its service time. We present a processing rate allocation scheme for 2D proportional slowdown differentiation. We then introduce service slowdown as a systemwide QoS metric of an e-commerce server. It is defined as the weighted sum of request slowdown in different sessions and in different session states. We formulate the problem of 2D service differentiation as an optimization of processing rate allocation with the objective of minimizing the service slowdown of the server. We prove that the derived rate allocation scheme based on the optimization guarantees client requests’ slowdown to be square-root proportional to their prespecified differentiation weights in both intersession and intrasession dimensions. We evaluate this square-root proportional rate allocation scheme and a proportional rate allocation scheme via extensive simulations. Results validate that both schemes can achieve predictable, controllable, and fair 2D service differentiation on e-commerce servers. The square-root proportional rate allocation scheme provides 2D service differentiation at a minimum cost of service slowdown.

KeywordTwo-dimensional Service Differentiation Slowdown Rate Allocation Resource Management Session
DOI10.1109/TPDS.2006.111
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Theory & Methods ; Engineering, Electrical & Electronic
WOS IDWOS:000238481900010
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Citation statistics
Cited Times [WOS]:20   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Corresponding AuthorXiaobo Zhou; Jianbin Wei; Cheng-Zhong Xu
Affiliation1.the Department of Computer Science, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918
2.the Department of Electrical and Computer Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202
Recommended Citation
GB/T 7714
Xiaobo Zhou,Jianbin Wei,Cheng-Zhong Xu. Resource allocation for session-based 2D service differentiation on e-commerce servers[J]. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,2006,17(8):838 - 850.
APA Xiaobo Zhou,Jianbin Wei,&Cheng-Zhong Xu.(2006).Resource allocation for session-based 2D service differentiation on e-commerce servers.IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,17(8),838 - 850.
MLA Xiaobo Zhou,et al."Resource allocation for session-based 2D service differentiation on e-commerce servers".IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 17.8(2006):838 - 850.
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