On the Viability of a Cloud Virtual Service Provider

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

6 Scopus Citations
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  • Liang Zheng
  • Carlee Joe-Wong
  • Christopher G. Brinton
  • Chee Wei Tan
  • Sangtae Ha
  • And 1 others
  • Mung Chiang

Related Research Unit(s)


Original languageEnglish
Pages (from-to)235-248
Journal / PublicationPerformance Evaluation Review
Issue number1
Online published14 Jun 2016
Publication statusPublished - Jun 2016


Cloud service providers (CSPs) often face highly dynamic user demands for their resources, which can make it difficult for them to maintain consistent quality-of-service. Some CSPs try to stabilize user demands by offering sustained-use discounts to jobs that consume more instance-hours per month. These discounts present an opportunity for users to pool their usage together into a single ''job.'' In this paper, we examine the viability of a middleman, the cloud virtual service provider (CVSP), that rents cloud resources from a CSP and then resells them to users. We show that the CVSP's business model is only viable if the average job runtimes and thresholds for sustained-use discounts are sufficiently small; otherwise, the CVSP cannot simultaneously maintain low job waiting times while qualifying for a sustained-use discount. We quantify these viability conditions by modeling the CVSP's job scheduling and then use this model to derive users' utility-maximizing demands and the CVSP's profit-maximizing price, as well as the optimal number of instances that the CVSP should rent from the CSP. We verify our results on a one-month trace from Google's production compute cluster, through which we first validate our assumptions on the job arrival and runtime distributions, and then show that the CVSP is viable under these workload traces. Indeed, the CVSP can earn a positive profit without significantly impacting the CSP's revenue, indicating that the CSP and CVSP can coexist in the cloud market.

Research Area(s)

  • cloud pricing, economic viability, virtual service provider

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

On the Viability of a Cloud Virtual Service Provider. / Zheng, Liang; Joe-Wong, Carlee; Brinton, Christopher G.; Tan, Chee Wei; Ha, Sangtae; Chiang, Mung.

In: Performance Evaluation Review, Vol. 44, No. 1, 06.2016, p. 235-248.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review