Full Paper © 2013 ACEEE DOI: 01.IJRTET.9.1. Int. J. on Recent Trends in Engineering and Technology, Vol. 9, No. 1, July 2013 1276 A Strategic Evaluation of Energy-Consumption and Total Execution Time for Cloud Computing Environment Souvik Pal 1 , Suneeta Mohanty 2 , Prasant Kumar Pattnaik 3 , G.B.Mund 4 Email: souvikpal22@gmail.com 1,2,3,4 KIIT University, Bhubaneswar, India Email: {smohantyfcs@kiit.ac.in, patnaikprasantfcs@kiit.ac.in, mund@kiit.ac.in} Abstract: Cloud computing is a very budding area in the research field and as well as in the IT enterprises. Cloud Computing is basically on-demand network access to a collection of physical resources which can be provisioned according to the need of cloud user under the supervision of Cloud Service provider interaction. In this era of rapid usage of Internet all over the world, Cloud computing has become the center of Internet-oriented business place. For enterprises, cloud computing is the worthy of consideration and they try to build business systems with minimal costs, higher profits and more choice; for large-scale industry, energy consumption and total execution tome are the two important aspects of cloud computing. In the current scenario, IT Enterprises are trying to minimize the energy-consumption which, in turn, maximizes the profit of the industry. And they are also trying to reduce total execution time which, in turn, is concerned with providing better Quality of Service (QoS). Therefore, in this paper we have made an attempt to evaluate energy- consumption and total execution time using CloudSim simulator which helps to make evaluation performance of energy consumption and total execution time of user application. Index Terms: Cloud Computing, Virtualization, Cloudlet, CloudSim. I. INTRODUCTION cloud computing or Internet computing is used for en- abling convenient, ondemand network access to a net works, servers, mass storage and application specific ser- vices with minimal effort to both service provider and end user [1]. In a simple way we can say that a Cloud itself an infrastructure or framework that comprises a pool of physical computing resources i.e. a set of hardware, processors, memory, storage, networks and bandwidth, which can be or- ganized on Demand into services that can grow or shrink in real-time scenario [2][3]. In a cloud computing environment, there is a set of interconnected and virtualized resources being dynamically provisioned according to the need of the user and depending on the Service-Level-Agreement (SLA) service [4]. In this era of immense usage of internet through- out the globe, virtualization technology is the key feature of Cloud Computing. Virtualization technology creates an envi- ronment that enables on-demand and convenient network access to a shared collection of configurable physical resources (i.e. set of hardware, processors, memory, storage and bandwidth) and as well as helps the creation of indi- vidual Virtual Machines (VM) according to the need of the cloud user. In this era of rapidly growing usage of internet throughout the world, Cloud Computing has become the icon of Internet- centric business place in the IT industry. The Cloud Computing is not a totally new technology; it is basically a journey through distributed, cluster and grid computing. In compared to cluster and grid computing, clouds are highly scalable, capable of both centralized & distributed resource handling, loosely coupled and provide on-demand computation & application service. Cloud computing is basically known as computing over internet. Cloud computing is an enhancement of distributed and parallel computing, Cluster Computing and Grid computing. In this advanced era, not only user able to use a particular web based application but also that may be in active participation in its computational procedure by either adopting ,demanding or pay-per-use basis [9][10]. In this era of immense usage of internet throughout the globe, the main aim of the major cloud service providers is maximum usage of the resources with minimal waiting time. Therefore, we have presented in this paper a strategic approach of evaluating energy-consumption and total execution time for cloud computing environment. A. Need for Virtualization A virtualization environment that delivers applications as services over the Internet and also provides services that involve hardware and system software in the data centers [5], which is the key features of cloud computing. Virtualization is used computer resources to imitate other computer resources or whole computers [6] [8]. Virtualization provides a platform with complex IT resources in a scalable manner (efficiently growing), which is ideal for delivering services. At a fundamental level, virtualization technology enables the abstraction or decoupling of the application payload from the underlying physical resources [4]; the Physical resources can be changed or transformed into virtual or logical resources on-demand which is sometimes known as Provisioning. However, in traditional approach, there are mixed hardware environment, multiple management tools, frequent application patching and updating, complex workloads and 146