ALL > Computer and Education > courses > university courses > undergraduate courses > Operating System > CLASS (2016-2017-1)-62903-06102-1 > 2014329700042-黄宇达 >
homework7 Version 0
👤 Author: by huangyuda13 2016-12-18 16:51:37
9.13 一个页面置换算法应使发生页错误的次数最小化。怎样才能通过将使用频率高的页平均分配到整个内存而不只是竞争少数几个页帧页来达到这种最小化。可以对每个页帧设置一个计数器来记录与此帧相关的页数。那么当置换一个页时,就可以查找计数器值最小的页帧

Answer:

a.定义一个页面置换算法解决问题:

Ⅰ.计数器初始值——0

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