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| QoS获益驱动的中间件调度框架研究 |
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张文博1,2,3, 陈宁江4, 魏峻1, 黄涛1,2
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1.中国科学院,软件研究所,软件工程技术研发中心,北京,100080;2.中国科学院,软件研究所,计算机科学重点实验室,北京,100080;3.中国科学院,研究生院,北京,100049;4.广西大学,计算机与电子信息学院,广西,南宁,530004
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| 摘要: |
| Web应用服务器目前普遍采用的先到先得式(FCFS)的调度框架在过载时难以保障应用的服务质量(QoS)需求.QoS获益驱动(QBD)的调度框架是一种针对这些不足而提出的请求调度解决方案.QoS获益根据应用的QoS需求得到,用于评价QoS保障对应用需求的满足情况.QBD调度框架包含了多个用于保障应用QoS需求的组件,实现了基于QoS获益的资源规划算法,能够提高服务器对应用QoS需求的保障能力.在OnceAS平台上的实验结果验证了QBD调度框架的有效性. |
| 关键词: Web应用服务器 QoS获益 调度框架 资源管理 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.60573126 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.2002CB312005 (国家重点基础研究发展规划(973)) |
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| A QoS Benefit Driven Scheduling Framework for Middleware |
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ZHANG Wen-Bo,CHEN Ning-Jiang,WEI Jun,HUANG Tao
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| Abstract: |
| The first-come first-served scheduling framework adopted by most application servers has been proved to be inappropriate for dealing with unexpected overload for Internet-oriented Web applications. Considering the deficiency of the existing work from the architecture view, this paper presents a scheduling framework based on the notion of QoS benefits, which contains several cooperating components to guarantee the QoS requirements of the applications. The QoS benefits used to evaluate the QoS guarantee provided by the server according to the QoS requirements of the applications and the resource management based on the QoS benefits will help to provide a better QoS guarantee. Experimental results confirm the efforts on the OnceAS application Server. |
| Key words: Web application server QoS benefit scheduling framework resource management |
