O'Reilly logo

Large Scale Network-Centric Distributed Systems by Albert Y. Zomaya, Hamid Sarbazi-Azad

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

19

Addressing Open Issues on Performance Evaluation in Cloud Computing

Beniamino Di Martino, Massimo Ficco, Massimiliano Rak, and Salvatore Venticinque

Contents

19.1 Introduction

Cloud computing is an emerging paradigm that allows customers to easily obtain services according to a pay-per-use business model. The current Cloud providers include Quality of Service (QoS) guarantees in their Service Level Agreement (SLA) proposals [1]. In general, they offer guarantees in terms of service availability and performance during a time period of months or a year. The provisioning contracts regulate the cost that customers have to pay for provided services and resources. Cloud service provider must pay a penalty if the customer's requirements are not satisfied. For example, the Cloud provider is liable to pay a penalty for service requests that are rejected due to unavailability of resources, or if the average service response time exceeds a fixed threshold. In order to support this model, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required