系统控制单元数据存储更新算法探讨

系统控制单元的有限存储空间被系统运行数据写满时,新产生的数据就需替换旧数据完成更新。通过采用逐条替换法、分块替换法、间歇删除法和抢断删除法,比较替换过程中最少存储数据的数量和实时性的滞后时间,找出一种最优的数据更新方法。试验结果表明,抢断删除替换算法更能快速有效实时完成数据的更新。

Study of Data Storage Updating Algorithm for System Control Unit

The operating data is recorded to limited space of system control unit,and new data replaces old data while the storage space is full.Comparing of the least number of storage data and lag time of real time,an optimal data updating method is chose among every-replacement algorithm,block-replacement algorithm,intermittent-deletion algorithm and preempt-deleting algorithm.Experiment results show that,preempt-deleting algorithm is faster and more effective to update data.