操作系统课程设计页面置换算法模拟（javaweb+数据库+多线程+AJAX动态体现+柱状图对比）

操作系统 java ajax

本文利用javaweb，连接了数据库，主要实现了五种置换算法、随机数生成、多线程启动和暂停、动画显示实现、柱状图生成、查看历史纪录、只显示最新一次结果等功能。具体如下：实现了五种置换算法，OPT、CLOCK、LFU、LRU、FIFO， (1) 输入一个逻辑页面访问序列和随机产生逻辑页面访问序列，由五个线程同时完成每个算法； (2) 能够设定驻留内存页面的个数、内存的存取时间、缺页中断的时间、快表的时间，并提供合理省缺值，可以暂停和继续系统的执行； (3) 能够随机输入存取的逻辑页面的页号序列； (4) 能够随机产生存取的逻辑页面的页号序列； (5) 能够设定页号序列中逻辑页面个数和范围； (6) 能够设定有快表和没有快表的运行模式； (7) 提供良好图形界面，同时能够展示四个算法运行的结果； (8) 给出每种页面置换算法每个页面的存取时间； (9) 能够将每次的实验输入和实验结果存储起来，下次运行时或以后可查询； (10) 完成多次不同设置的实验，总结实验数据，看看能得出什么结论。

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