广域网分布式计算系统透明内存设计与实现  

Design and realization of transparent memory usage for distributed computing system in WAN environment

作　　者：刘洋[1] 王伟[2] 

机构地区：[1]河南财经政法大学现代教育技术中心,河南郑州450002 [2]河南工业贸易职业学院计算机技术系,河南郑州450053

出　　处：《计算机工程与设计》2010年第21期4603-4606,4631,共5页Computer Engineering and Design

基　　金：河南省教育厅自然科学基金项目(2008B520002)

摘　　要：分布式应用污染本地内存,造成大量页错误从而影响本地性能,为了解决该问题,提出了一种多优先级透明内存使用方法。该方法根据本地负载的变化,动态改变分配给分布式应用的内存量,并且对分布式任务划分了不同的优先级,使优先级低的任务占用更少的内存资源从而保障高优先级的任务。通过搭建原型系统进行试验,结果表明了该方法可以保证分布式应用的透明性,并提高贡献内存的使用效率。In order to solve the pollution of local memory by distributed application, which leads to a lot of page faults and performance depreciation of local host, a multi-prority transparent memory usage method is presented. Based on the fluctuation of local work load, memory is allocated to distributed application dynamically. Distributed tasks are divided into several priority levels, and the lower priority it has, the less memory it will get. Experiment on a prototype system show that the proposed method ensure the transparency of distributed application, and improve the efficiency of shared memory.

关 键 词：分布式计算系统 广域网环境 透明内存使用 多优先级 用户服务质量 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]