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模拟一个页式虚拟存储系统,用FIFO和LRU置换算法,计算所发生的缺页次数。
1、模拟一个页式虚拟存储系统,用FIFO和LRU置换算法,计算所发生的缺页次数。每个进程在内存占有3页数据区,刚开始时数据区为空。有以下访问数据页序列:5 0 1 0 2 0 1 4 0 2 5 1 2 3 5 (测试数据)请分别模拟2、实现过程:1) 内存分配:给进程分配一定的物理块数,由用户输入物理块数,用数组元素模拟物理块。2) 由文件读入页面访问序列,用数组保存。3) 将要访问的页面依次调入内存,分配到物理块中,形成页框表。其表项号即物理块号(数组元素下标),将页号放入数组相应位置。 请点击左侧文件开始预览 !预览只提供20%的代码片段,完整代码需下载后查看 加载中 侵权举报
- 2022-02-07 13:05:33下载
- 积分:1
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Nucleus Plus PowerPC移植代码 PPC850
Nucleus Plus PowerPC移植代码 PPC850-Nucleus Plus PPC850
- 2022-07-17 03:42:23下载
- 积分:1
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作业 调度源程 序作业调 度源程序
作业 调度源程 序作业调 度源程序-i am zhaozihangi am zhaozihangi am zhaozihangi am zhaozihangi am zhaozihang
- 2022-01-25 17:41:31下载
- 积分:1
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操作系统实验,处理机调度,进程间通信,进程同步与互斥,存储管理
操作系统课程的实验,资源为4个Java源代码文件,实现了处理机调度,进程间通信,进程同步与互斥,存储管理,值得一看。
- 2022-12-29 10:25:04下载
- 积分:1
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SJF算法,最短优先算法,大家还是看看吧,同样帮修改一下阿,谢谢啦...
SJF算法,最短优先算法,大家还是看看吧,同样帮修改一下阿,谢谢啦-SJF algorithm, the shortest priority algorithm, we still look at it, also changed a bit to help Ah, thank you
- 2022-05-22 17:53:37下载
- 积分:1
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1. Dujiangyan operating system, written in quite good, gone, as the author calls...
1.都江堰操作系统,写的相当不错,真如作者所说的是自己多年的心血结晶。
2.创新特色非常鲜明。
3.里面包含了keil MDK工程。-1. Dujiangyan operating system, written in quite good, gone, as the author calls the crystallization of their own for many years. 2. Innovative and extremely impressive. 3. Keil MDK project which contains the.
- 2023-06-24 03:00:03下载
- 积分:1
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Operating system, application of the calculation method of the realization of th...
操作系统的应用计算法的实现,先进先出最高响应比-Operating system, application of the calculation method of the realization of the maximum response ratio FIFO
- 2022-09-04 22:00:02下载
- 积分:1
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1 : Prepare a simulation and debugging process scheduling procedures, "Prio...
1、 :编写并调试一个模拟的进程调度程序,采用“最高优先数优先”调度算法对进程进行调度。 “最高优先数优先调度算法的基本思想是把CPU分配给就绪队列中优先数最高的进程。尝试静态优先数与动态优先数两种方法:
a) 静态优先数是指优先数在整个进程运行期间不再改变。优先数可以在数据输入时指定,也可以根据到达顺序、运行时间确定。
b) 动态优先数是指进程的优先数在创建进程时可以给定一个初始值,并且可以按一定原则修改优先数。例如进程获得一次CPU后就将其优先数减少1。或者进程等待的时间超过某一时限时增加其优先数的值。
2、 编写并调试一个模拟的进程调度程序,模拟实现多级反馈队列调度算法。
3、 编写并调试一个模拟的进程调度程序,模拟实现最低松弛度优先算法。
4、 程序与报告要求:
a) 对上述要求1、2、3,至少要完成一项,鼓励尝试多种算法。
b) 输出结果要尽量详细清晰,能够反映调度后队列变化,PCB内部变化。
c) 可以选择在Windows或Linux环境下编写、运行程序
d) 鼓励使用不同的开发工具在不同平台环境上进行开发比较。
e) 在实验报告中,一方面可以对实验结果进行分析,一方面可以对各种算法进行比较,分析它们的优劣,说明各种算法适用于哪些情况下的调度。
-1 : Prepare a simulation and debugging process scheduling procedures, "Priority number of the highest priority" to the process of scheduling algorithms for scheduling. "Highest priority priority scheduling algorithm for the basic idea is to place the CPU allocated to the priority queue highest process. Taste Examination several static and dynamic priority priority number two methods : a) static priority number is priority
- 2022-03-26 12:38:45下载
- 积分:1
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操作系统实验演示代码(三个实验,作业管理,内存管理,文件管理)...
操作系统实验演示代码(三个实验,作业管理,内存管理,文件管理)-Experimental demonstration of the operating system code (three experiments, operations management, memory management, document management)
- 2022-02-02 15:15:00下载
- 积分:1
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新版本发布之为0.6.5.0。它的基础上有点不到100和…
New Kolibri version 0.6.5.0 released. It s based on a bit less than hundred and a half revisions, including many changed and additions for both kernel and applications. Most noticeable is read ability from NTFS partitions, kernel support for programs and drivers packed with KPACK, functions to change cursors from the application side. Desktop picture should now look more attractive since new smoothing algorithm is used.
Talking about programs changing we can mark KFAR (copy files, create folders), FASM (fixes for output generation), TINYPAD (work with mutliple files, change encoding, dynamic memory allocation). Changes have also been made to more than 50 other programs.
- 2023-05-02 04:55:06下载
- 积分:1