"请求页式存储管理：常用页面置换算法模拟实验报告"

The experiment "Simulating Common Page Replacement Algorithms in Demand Paging Memory Management" explores the concepts of memory partitioning and page replacement strategies in computer operating systems. The experiment aims to enhance the understanding of memory allocation policies, grasp the concept of page replacement strategies, master commonly used scheduling algorithms, learn how to implement various storage allocation algorithms, and understand the impact of page size and actual memory capacity on hit ratios. The experiment is conducted in the laboratory of the School of Information Science and Technology at Jinan University. The experiment involves simulating the OPT (Optimal Replacement), LRU (Least Recently Used), and FIFO (First In First Out) algorithms for page replacement. The programming language used for the experiment is C. The experiment begins with the design of the algorithm flowchart and the selection of a replacement algorithm. The experiment involves inputting all page numbers and allocating physical blocks for the system. The simulation process includes implementing the chosen algorithms and calculating hit ratios for each algorithm. The experiment also considers the influence of page size and actual memory capacity on hit ratios. Through this experiment, students gain practical insights into demand paging memory management, enhance their programming skills in C language, and understand the trade-offs involved in choosing different page replacement algorithms. Overall, the experiment provides a hands-on learning experience in the essential concepts of memory management and page replacement strategies in computer operating systems.