摘要
提出了一种适于大规模分布式VoD系统的分级存储调度算法。该算法建立在多队列的排队模型之上 ,使用了系统均衡方法及基于优先级的缓冲区管理算法 ,并提供了迁移等待时间的计算方法。通过仿真实验给出了缓冲区大小与业务量和节目驻留时间的关系 。
A scheduling algorithm of hierarchical storage for distributed massive VoD system is presented The algorithm is built on a multi queue model,and uses a method of system load balancing and a priority based cache management algorithm It also provides a way to calculate the migration time Through computer simulation,relations of cache size and traffic and video program staying time is resulted The presented results will be valuable for the design of VoD system with hierarchical storage
出处
《通信学报》
EI
CSCD
北大核心
2000年第3期64-69,共6页
Journal on Communications
