Delay and price differentiation in cloud computing: a service model, supporting architectures, and performance
File(s)
Accepted version
Author(s)
Wu, Xiaohu
De Pellegrini, Francesco
Casale, Giuliano
Type
Journal Article
Abstract
Many cloud service providers (CSPs) offer an on-demand service with a small delay. Motivated by the reality of cloud ecosystems, we study non-interruptible services and consider a differentiated service model to complement the existing market by offering multiple service level agreements (SLAs) to satisfy users with different delay tolerance. The model itself is incentive compatible by construction. Two typical architectures are considered to fulfill SLAs: (i) non-preemptive priority queues and (ii) multiple independent groups of servers. We leverage queueing theory to establish guidelines for the resultant market: (a) Under the first architecture, the service model can only improve the revenue marginally over the pure on-demand service model and (b) under the second architecture, we give a closed-form expression of the revenue improvement when a CSP offers two SLAs and derive a condition under which the market is viable. Additionally, under the second architecture, we give an exhaustive search procedure to find the optimal SLA delays and prices when a CSP generally offers multiple SLAs. Numerical results show that the achieved revenue improvement can be significant even if two SLAs are offered. Our results can help CSPs design optimal delay-differentiated services and choose appropriate serving architectures.
Date Issued
2023-09
Date Acceptance
2023-04-08
Citation
ACM Transactions on Modeling and Performance Evaluation of Computing Systems, 2023, 8 (3)
ISSN
2376-3647
Publisher
Association for Computing Machinery (ACM)
Journal / Book Title
ACM Transactions on Modeling and Performance Evaluation of Computing Systems
Volume
8
Issue
3
Copyright Statement
Copyright © Author(s) 2023. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in ACM Transactions on Modeling and Performance Evaluation of Computing SystemsVolume 8Issue 3 http://dx.doi.org/10.1145/3592852
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001053963500002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
cloud computing
Computer Science
Computer Science, Information Systems
incentive compatible
Science & Technology
Service differentiation
Technology
Publication Status
Published
Article Number
ARTN 6
Date Publish Online
2023-04-17