可扩展云计算环境建模与仿真及CloudSim工具包：挑战与机遇
Modeling and Simulation of Scalable Cloud Computing Environments and the CloudSim Toolkit: Challenges and Opportunities
摘要：
云计算旨在为下一代数据中心提供动力，并使应用程序服务提供商能够根据用户QoS（服务质量）要求租用数据中心功能以部署应用程序。云应用程序具有不同的组成、配置和部署要求。在云计算环境中，针对不同的应用和服务模型，在不同的负载、能量性能（功耗、散热）和系统规模下，对资源分配策略和应用调度算法的性能进行量化是一个具有挑战性的问题。为了简化这一过程，在本文中，我们提出CloudSim：一个可扩展的仿真工具包，使建模和模拟的云计算环境。CloudSim工具包支持在数据中心的模拟节点上建模和创建一个或多个虚拟机（VM）、作业及其到合适VM的映射。它还允许模拟多个数据中心，以研究虚拟机迁移的联合和相关策略，从而实现应用程序的可靠性和自动扩展。
英文摘要：
Cloud computing aims to power the next generation data centers and enables application service providers to lease data center capabilities for deploying applications depending on user QoS (Quality of Service) requirements. Cloud applications have different composition, configuration, and deployment requirements. Quantifying the performance of resource allocation policies and application scheduling algorithms at finer details in Cloud computing environments for different application and service models under varying load, energy performance (power consumption, heat dissipation), and system size is a challenging problem to tackle. To simplify this process, in this paper we propose CloudSim: an extensible simulation toolkit that enables modelling and simulation of Cloud computing environments. The CloudSim toolkit supports modelling and creation of one or more virtual machines (VMs) on a simulated node of a Data Center, jobs, and their mapping to suitable VMs. It also allows simulation of multiple Data Centers to enable a study on federation and associated policies for migration of VMs for reliability and automatic scaling of applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
