Profit-Driven Service Request Scheduling in Clouds
Profit-Driven Service Request Scheduling in Clouds
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DOI：
10.1109/ccgrid.2010.83
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
Young Choon Lee;Chen Wang;Albert Y. Zomaya;B. Zhou
中科院分区：
文献类型：
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作者：
Young Choon Lee;Chen Wang;Albert Y. Zomaya;B. Zhou
最近云计算模式的主要驱动力是其固有的成本效益。与许多基本公用事业（如电力和水）一样，云计算环境中的消费者/客户端根据其服务使用情况收费，因此称为“按使用付费”。虽然这种定价模型对服务提供商和消费者都非常有吸引力，但波动的服务请求量和相互冲突的目标（例如，利润与响应时间）之间的竞争阻碍了其在云计算环境中的有效应用。在本文中，我们解决了云计算系统中的服务请求调度问题。我们考虑了一个三层云结构，它由基础设施供应商、服务提供商和消费者组成，后两方对我们特别感兴趣。显然，这种情况下的调度策略应该满足双方的目标。我们的贡献包括一个定价模型的开发，使用处理器共享云，该定价模型的应用组合服务的依赖性考虑（据我们所知，在这项研究中的工作是第一次尝试），并开发两套利润驱动的调度算法。
A primary driving force of the recent cloud computing paradigm is its inherent cost effectiveness. As in many basic utilities, such as electricity and water, consumers/clients in cloud computing environments are charged based on their service usage, hence the term ‘pay-per-use’. While this pricing model is very appealing for both service providers and consumers, fluctuating service request volume and conflicting objectives (e.g., profit vs. response time) between providers and consumers hinder its effective application to cloud computing environments. In this paper, we address the problem of service request scheduling in cloud computing systems. We consider a three-tier cloud structure, which consists of infrastructure vendors, service providers and consumers, the latter two parties are particular interest to us. Clearly, scheduling strategies in this scenario should satisfy the objectives of both parties. Our contributions include the development of a pricing model—using processor-sharing—for clouds, the application of this pricing model to composite services with dependency consideration (to the best of our knowledge, the work in this study is the first attempt), and the development of two sets of profit-driven scheduling algorithms.