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BECloud: A new approach to analyse elasticity enablers of cloud services

机译:BECloud:一种分析云服务弹性促成因素的新方法

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摘要

Elasticity is a key property of cloud computing but there is a lack of standard elasticity metrics or analysis procedures to easily quantify this performance figure of cloud services. This absence of a unique general elasticity metric makes difficult to consider elasticity as a service level objective in Service Level Agreements, to benchmark cloud services or to explicitly improve the elasticity of scaling and provisioning mechanisms, to mention only some examples. This paper defines a new elasticity metric capable of considering its four main components, scalability, accuracy, time and cost, independently of the service level (infrastructure, platform or software). Furthermore, an analysis procedure to evaluate the behaviour of service elasticity and a benchmarking tool to automate this analysis are presented. The main elasticity enablers of cloud services are identified and analysed using this metric, procedure and tool via real use cases on private and public clouds, drawing interesting conclusions about this important performance aspect of cloud services.
机译:弹性是云计算的关键属性,但是缺乏标准的弹性指标或分析程序来轻松量化云服务的这一性能指标。仅缺少一些示例,由于缺少唯一的通用弹性度量标准,因此很难将弹性视为服务级别协议中的服务级别目标,基准化云服务或显式提高扩展和供应机制的弹性。本文定义了一种新的弹性度量,能够独立于服务级别(基础架构,平台或软件)考虑其四个主要组件,可伸缩性,准确性,时间和成本。此外,提出了评估服务弹性行为的分析程序和使该分析自动化的基准工具。使用此指标,过程和工具,通过在私有云和公共云上的实际使用案例,确定并分析了云服务的主要弹性支持因素,得出了有关云服务这一重要性能方面的有趣结论。

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