面向NGN业务的qos感知多云代理:弹性资源分配机制的切实效益

T. Magedanz, F. Schreiner
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引用次数: 11

摘要

根据动态工作负载快速扩展云资源的弹性机制是云计算的基本特征。动态选择当前最优的云服务是云代理机制的主要目标之一。与弹性云资源分配功能相结合,多云代理机制允许动态选择和有效利用云资源。在动态变化的工作负载和不同QoS约束下实现的资源消耗效率是此类系统的关键性能指标。本文评估了在未来互联网技术研究和实验的大规模多云环境中影响此类系统性能的多种因素的影响。它定义了评估多云代理系统性能的指标,并据此评估了基于云的NGN流媒体服务的云代理原型。通过评估应用程序和云资源特定影响的影响,以及实际NGN工作负载的具体特征,可以对潜在的成本/资源节约和可实现的QoS级别进行现实的估计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
QoS-aware multi-cloud brokering for NGN services: Tangible benefits of elastic resource allocation mechanisms
Elastic mechanisms for rapidly scaling cloud resources according to dynamic workloads are essential characteristics of cloud computing. The dynamic selection of current optimal cloud services is one of the main objectives of cloud brokering mechanisms. Combined with capabilities for elastic cloud resource allocation, multi-cloud brokering mechanisms allow for dynamic selection and efficient utilization of cloud resources. The achieved efficiency of resource consumption under dynamically changing workloads and different QoS constraints is a key performance indicator of such systems. This paper evaluates the effects of multiple factors impacting the performance of such systems in a large-scale multi-cloud environment for research and experimentation of Future Internet technologies. It defines metrics for assessing the performance of multi-cloud brokering systems, against which a cloud brokering prototype for cloud-based NGN media streaming services is evaluated. By evaluating the impact of application- and cloud resource-specific effects, as well as the specific characteristics of realistic NGN workloads, a realistic estimation of potential cost-/resource savings and achievable QoS levels is provided.
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