作　　者： ; ; ; ; ; ;

机构地区： 武汉大学计算机学院

出　　处： 《中国科技论文在线》 2009年第2期79-84,共6页

摘　　要： 随着移动计算设备数目的增多,设备失效和由于无线带宽、通信质量、调度队列过长造成的信息失效对系统计算性能产生严重的影响。移动缓存是解决这一难题较好的技术,考虑到数据失效缓存后产生的广播队列优先性问题,设计了一种多缓冲队列的调度模型,通过多缓冲队列来对广播数据项进行重新优先分类。依据该调度模型,提出一种基于移动Agent技术和IBM ARM的数据广播调度失效性控制策略,从而保证数据在有效的时间和执行终端上得到执行。模型验证和仿真结果表明,相对单缓冲队列模型和随机失效处理策略,提出的模型和策略在失效率和作业平均响应时间上平均降低20%左右。 Increasing with the number of mobile computing equipments, the system computing performance are seriously influenced because of the invalidation of equipment and invalidation broadcasting information which is induced by wireless bandwidth, communication quality and too long scheduling queue. Mobile cache is a suitable technology to solute this problem. Considering the priority problem of broadcasting queue generated by data invalidation cache, this paper designs a multi-buffer queue-scheduling model, which classifies the priority of broadcasting data. A invalidation control strategy of data broadcasting scheduling based on mobile Agent and IBM Application Response Measurement （ARM） is presented to guarantee data executing on the terminal in the right time. The results of experiments show that the invalidation rate and average work response time of the presented model and strategy in this paper are less （20%） than the single buffer queue mode and random invalidation controlling strategy.

关 键 词： 计算机应用技术 失效 失效率 策略 数据广播 调度

领　　域： [自动化与计算机技术] [自动化与计算机技术]