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操作系统学习中的模拟CUP如何调度外部进程的算法—优先度调用算法(Analog CUP in the operating system, learn how to schedule external process algorithm- priority call algorithm)

说明：  这是操作系统中调度算法中时间片轮转算法完成后的实践报告(This is the operating system scheduling algorithm in the time slice cycle after the completion of practice report)

本教材以操作系统原理为主线，结合当今主流操作系统设计方法。(The principles of materials to the main line operating system, combined with today' s mainstream operating system design.)

1）设计一程序，由一个进程创建三个子进程，三个子进程一个是生产者进程，两个是消费者进程。 2）父子进程都使用父进程创建的共享存储区进行通信，由生产者进程将一个数组中的十个数值发送到由5个缓冲区组成的共享内存中。? 3）两个消费者进程轮流接收并输出这十个数值，同时将两个消费者进程读出的数值进行累加求各和。 4）考虑生产者进程生产的速度和消费者进程速度。(1) a program is designed to create three sub processes from one process, three sub processes is the producer process, and the two is the consumer process. 2) the father child process communicates with the shared storage area created by the parent process, and sends ten values in one array to the shared memory composed of 5 buffers by the producer process. L 3) the two consumer processes take turns to receive and output the ten values, and add values to each of the two consumer processes. 4) take into account the production speed of the producer process and the speed of the consumer process.)

1．虚拟存储器的引入 局部性原理：程序在执行时在一较短时间内仅限于某个部分；相应的，它所访问的存储空间也局限于某个区域，它主要表现在以下两个方面：时间局限性和空间局限性。 2．虚拟存储器的定义 虚拟存储器是只具有请求调入功能和置换功能，能从逻辑上对内存容量进行扩充的一种存储器系统 (1. The introduction of virtual memory locality principle: program execution in a relatively short period of time limited to a particular part of it Accordingly, it has access to the storage space is also limited to a particular region, it is mainly manifested in the following two aspects: the time limitations and space limitations. 2. The definition of virtual memory Virtual memory is just a request for redeployment of functions and displacement functions, from the logical to expand the memory capacity of a memory system)

模拟操作系统进程调度的算法采用时间片轮转法和优先权法(operating system simulation process scheduling algorithm-time Web-law and law priority)

HPA就是host protect area(HPA is the host protect area)

这是我做的操作系统里面的银行家算法的源程序，发上来供大家参考。(caozuoxitongyinhangjiasuanfa)

对于OPT算法，在有多个页面可选的情况下，先淘汰较早进入的页面）。 3. 计算缺页次数及缺页率。 测试用例格式如下： 输入： 算法（1 OPT，2 FIFO，3 LRU） 内存块数 页面序列（页面1,页面2,页面3,...) 输出： 页面变化时内存块装入页面列表1-是否命中/页面变化时内存块装入页面列表2-是否命中/... 缺页次数 其中： 页面变化时内存块装入页面列表：内存块1装入页面,内存块2装入页面,内存块3装入页面...，未装入任何页面时由 -”表示 是否命中：1-命中，0-缺页">

非常强大的DDOS嘎嘎，速度下载把，版权帝们，(Very strong DDOS quack)