大型数据库数据文件混沌特性调度优化算法

Optimization Algorithm of Large Network Database Based on Data Files Chaos Characteristic

大型数据库数据在调度过程中,在结构鲁棒性增加的同时,大量的调度查找操作会形成一种混沌特征。提出一种考虑大型数据库数据文件混沌特性的数据文件调度方法。对大型数据库数据文件调度过程运用一种混沌化的形式表示,运用混沌因子代入到调度寻优计算中,使得调度寻优过程考虑数据库服务器负载等因素,以保持算法的多样性,防止数据库负载过大等弊端出现,仿真结果表明,该方法提高了大型数据库数据文件调度的效率,增加了系统的吞吐量,同时使调度准确率比传统算法提高63.2%,减少了系统调度时的开销,有很强的实际运用价值。

In the structure along with the increase of the robustness, a lot of optimization operation can form a kind of chaot-ic characteristics.Considering large network database is a data file load chaos characteristics factor of network data schedul-ing model. For large network database data file server load process using a form of chaos, using chaos because of their off-spring into optimization calculation, optimization process take into consideration the fact that the load on the server. Keep the diversity of algorithm, to prevent excessive load on the malpractice, the simulation results show that the method im-proves the node bandwidth utilization, reduce the server load, can carry on the reasonable allocation and dispatch to the data.