Auditing CPU performance in public cloud

Qiang Huang, Lin Ye, Xinran Liu, Xiaojiang Du

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

Cloud computing services offer elastic computing and storage to end-users over the Internet in a pay-as-you-go way. Many businesses have started using cloud computing. A Service Level Agreement (SLA) between a cloud service provider (CSP) and a user is a contract that specifies the resources and performances that the cloud should provide. However, a CSP has the incentive to cheat on SLA, e.g., providing users with less CPU and memory resources than that specified in the SLA, which allows the CSP to support more users and make more profits. Unfortunately, there are no tools to allow users to verify the SLA. We study the important issue of verifying SLA in a semi-trusted (or untrusted) cloud. In this paper, we focus on the verification of CPU speed, which is an important metric in cloud SLA. We propose a lightweight stealthy test algorithm that can check if a CSP provides the CPU speed as specified in the SLA. Using real experiments, we show that the algorithm can detect cloud cheating on CPU speed (i.e., SLA violations) in a stealthy way.

Original languageEnglish
Title of host publicationProceedings - 2013 IEEE 9th World Congress on Services, SERVICES 2013
Pages286-289
Number of pages4
DOIs
StatePublished - 2013
Event2013 IEEE 9th World Congress on Services, SERVICES 2013 - Santa Clara, CA, United States
Duration: 27 Jun 20132 Jul 2013

Publication series

NameProceedings - 2013 IEEE 9th World Congress on Services, SERVICES 2013

Conference

Conference2013 IEEE 9th World Congress on Services, SERVICES 2013
Country/TerritoryUnited States
CitySanta Clara, CA
Period27/06/132/07/13

Keywords

  • CPU
  • Cloud computing
  • auditing

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