Power and Performance Management in Cloud Computing Systems

Research output: Types of ThesisDoctoral Thesis

Abstract

Cloud computing is an emerging computing paradigm which is gaining popularity in IT industry for its appealing property of considering "Everything as a Service". The goal of a cloud infrastructure provider is to maximize its profit by minimizing the amount of violations of Quality-of-Service (QoS) levels agreed with service providers, and, at the same time, by lowering infrastructure costs. Among these costs, the energy consumption induced by the cloud infrastructure, for running cloud services, plays a primary role. Unfortunately, the minimization of QoS viola- tions and, at the same time, the reduction of energy consumption is a conflicting and challenging problem. In this thesis, we propose a framework to automatically manage computing resources of cloud infrastructures in order to simultaneously achieve suitable QoS levels and to reduce as much as possible the amount of energy used for providing services. We show, through simulation, that our approach is able to dynamically adapt to time-varying workloads (without any prior knowledge) and to significantly reduce QoS violations and energy consumption with respect to traditional static approaches.
Original languageEnglish
Awarding Institution
  • Universita' degli Studi del Piemonte Orientale "Amedeo Avogadro"
Publication statusPublished - 2012

Keywords

  • Cloud Computing
  • Control Theory
  • Green Computing
  • Optimization
  • Resource Management
  • Service Level Agreement
  • System Identification
  • energy efficiency

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