Search - Memory LRU

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[Other] 页面置换算法三种） DL : 0: 掌握内存管理的页面淘汰算法输入可用内存页面数和一个作业访问逻辑页号的序列，分别给存FIFO、LRU算法的缺页中断率（注：算法原理实现，不要求实际页面）。-master memory management algorithm pages out of the importation of a few pages available memory and a logic operation visit pages of the sequence, kept FIFO, the LRU algorithm missing pages interrupt rate (Note : The principles of achieving algorithm that does not require the actual pages).
Date : 2025-12-23 Size : 6kb User : 施委
[Other] cunchuqiguanli DL : 0: 操作系统存储器管理实验的C语言模拟程序，采用FIFO和LRU两种算法-experimental operating system memory management in C language simulation procedures and two FIFO and LRU algorithm
Date : 2025-12-23 Size : 1kb User : 胡恩
[Other] OSkeshe DL : 0: 操作系统课社 1.理解内存页面调度的机理。 2.掌握几种理论页面置换算法的实现方法。 3.了解HASH表数据结构的使用。 4.通过课程设计比较各种调度算法的优劣。 5.熟悉页面置换算法及其实现，引入计算机系统性能评价方法的概念。页面置换算法是虚拟存储管理实现的关键，通过本次课程设计理解内存页面调度的机制，在模拟实现FIFO、LRU页面置换算法的基础上，比较两种置换算法的效率及优缺点，从而了解虚拟存储实现的过程。 -Operating System Division 1 clubs. To understand the mechanism of memory paging. 2. Have several theories page replacement algorithm method. 3. HASH table to understand the use of data structure. 4. Through the curriculum design to compare the merits of scheduling algorithm. 5. Familiar with the page replacement algorithm and its realization, the introduction of computer systems the concept of performance evaluation methods. Page replacement algorithm is the virtual storage management to achieve the key to the curriculum design through this understanding of memory paging mechanism to achieve in a simulated FIFO, LRU page replacement algorithm based on the comparison of the two replacement algorithm efficiency and the advantages and disadvantages to understand the virtual the realization of the process of storage.
Date : 2025-12-23 Size : 61kb User : dongguanghuai
[Other] test5 DL : 0: 内存页式调度算法，分别有fifo、unr、和、lru三种算法-Scheduling algorithm for memory page
Date : 2025-12-23 Size : 293kb User : lulingjun
[Other] fifo DL : 0: c语言实现内存调度 FIFO LFU LRU 基于vc6.0 -c language memory-based FIFO LFU LRU scheduling vc6.0
Date : 2025-12-23 Size : 1kb User : 小弟
[Other] YMZH DL : 0: 在虚拟机上模拟操作系统对内存的页面LRU置换算法。-In the virtual machine to simulate the operating system memory pages LRU replacement algorithm.
Date : 2025-12-23 Size : 1kb User : greenen
[Other] pp DL : 0: 1、编程接收从键盘上输入的页面使用序列，序列长度不确定，根据输入内容不同而变化。 2、设置分配策略（全局分配或局部分配），设定每个进程分给的页数以及整个物理内存容量 3、显示出了页面走向图 4、计算出该序列的缺页率 5、内存不足时的淘汰算法采用LRU法-1, programmed to receive input from the keyboard on the page using the sequence, sequence length uncertainty, varies according to input. 2, set the allocation strategy (global distribution or partial distribution), set the number of pages assigned to each process and the entire physical memory capacity of 3, indicating that the page into Figure 4 to calculate the rate of the sequence of the missing page 5, out of memory eliminated when the algorithm uses the LRU method
Date : 2025-12-23 Size : 1kb User : 唐媛
[Other] LRU DL : 0: 1、产生一个需要访问的指令地址流，它是一系列需要访问的指令的地址。为不失一般性，你可以适当地（用人工指定地方法或用随机数产生器）生成这个序列，使得 50％的指令是顺序执行的。25％的指令均匀地散布在前地址部分，25％的地址是均匀地散布在后地址部分。　　2、指定合适的页面尺寸（例如以 1K或2K为1页）；　　3、指定内存页表的最大长度，并对页表进行初始化； 4、每访问一个地址时，首先要计算该地址所在的页的页号，然后查页表，判断该页是否在主存——如果该页已在主存，则打印页表情况；如果该页不在主存且页表未满，则调入一页并打印页表情况；如果该页不足主存且页表已满，则按 LRU页面淘汰算法淘汰一页后调入所需的页，打印页表情况；逐个地址访问，直到所有地址访问完毕。 -1, resulting in a need to access the instruction address stream, which is a series of instructions need to access the address. Is without loss of generality, you can properly (using manual methods or the designated land use random number generator) to generate this sequence, making the order of 50 of the orders are executed. 25 of the instruction evenly spread in the former parts of the address, 25 of the addresses are evenly spread in the latter part of the address. 2, specify the appropriate page size (such as 1K or 2K 1 page) 3, specify the maximum length of the memory page tables, and page table initialization 4, each visit to an address, we must first calculate the address of the page where the page number, and then check page table to determine whether the page in the main memory- if the page in main memory, then the printed page-table situation if the Page is not in main memory and the page tables below, then transferred to one and print the page-table situation if
Date : 2025-12-23 Size : 1kb User : 黄俊
[Other] os2 DL : 0: 实现分页式存储地址转换过程，在此基础上实现请求分页的地址转换。分页式存储管理系统是内存非连续存储管理中基本的方法，可以通过把一个作业分成多个页面分配到不连续的内存块中去。实验可以通过位示图的方式来模拟内存的使用情况，为每个作业建立页表用于完成正确的地址转换。（二）实验内容与步骤：利用键盘输入本模拟系统的物理块的大小，作业的页表中的块号；完成逻辑地址转换成相应的物理地址的过程。具体过程：１、建立一张位示图，用来模拟内存的分配情况，利用随机数产生一组0和1的数对应内存的使用情况。２、输入块（页）的大小，通过模拟位示图为本作业分配内存空间建立相应的页表（长度不定）；３、录入逻辑地址转换成相应的物理地址４、扩充页表，变成请求式的二维页表（增加存在位等）完成地址转换。 -Achieve paging storage address translation process, based on the request in this page' s address translation. Paging memory storage management system is the basic storage management of non-continuous method, you can put a job into multiple pages allocated to the non-contiguous block of memory to. Experiments show map by means of digital simulation of memory usage, page table for each operation to establish the correct address for the complete conversion. (
Date : 2025-12-23 Size : 2kb User : yli
[Other] os DL : 0: 采用页式分配存储方案，通过分别计算不同算法的命中率来比较算法的优劣，同时也考虑页面大小及内存实际容量对命中率的影响；实现OPT 算法 (最优置换算法) 、LRU 算法 (Least Recently) 、 FIFO 算法 (First IN First Out)的模拟； -By page type allocation of storage solutions, were calculated by the hit rate of different algorithms to compare the merits of algorithms, taking into account the actual page size and memory capacity of the hit rate achieve OPT algorithm (the optimal replacement algorithm), LRU algorithm ( Least Recently), FIFO algorithm (First IN First Out) of the simulation
Date : 2025-12-23 Size : 4kb User : kkk
[Other] experment DL : 0: 一个内存页面的LRU（最近最久未使用）替换算法演示，一个管道的多字节分时处理模拟。-A memory page of the LRU (Least Recently Used) replacement algorithm demo, and a pipeline of multi-byte time-sharing processing simulation.
Date : 2025-12-23 Size : 3kb User : 谭继林
[Other] cun_chu_guan_li DL : 0: 1) 通过随机数产生一个指令序列，共320条指令 2) 将指令序列变换成页地址流 3) 计算并输出下述各种算法在不同内存容量下的命中率。 ① 先进先出的算法（FIFO）； ② 最近最少使用算法（LRU）； ③ 最佳淘汰算法（OPT）；-1) by a random number to generate a sequence of instructions, a total of 320 instructions) instruction sequence is converted into the page address stream 3) Calculate and output the following various algorithms hit rate under different memory capacity. ① The algorithm of the first-in, first-out (FIFO) ② The least recently used algorithm (LRU) ③ The best out algorithm (OPT)
Date : 2025-12-23 Size : 2kb User : 高雯
[Other] os2 DL : 0: 通过在第1部分实验基础上，完成实现进程的分页式内存分配和地址转换过程，并进一步完成请求分页式存储分配和地址转换过程。掌握分页式存储管理和请求分页存储管理、并掌握页面置换先进先出（FIFO）、最近最久未使用（LRU）等算法-Through to complete paging memory allocation and address of the realization process of the conversion process, based on the first part of the experiment, and further to complete the requested the paging storage allocation and address translation process. Master paging storage management and the demand paging storage management, and mastery of the first-in, first-out (FIFO) page replacement, most-recently-used (LRU) algorithm
Date : 2025-12-23 Size : 6kb User : lizhi
[Other] MemoryManagement DL : 0: java 模拟CPU系统调页，每个页面可存放10条指令，分配给一个作业的内存块为4。模拟一个作业的执行过程，该作业有320条指令，即它的地址空间为32页，采用FIFO、LRU算法，并计算缺页率-java simulation CPU system paging, each page can hold 10 instructions, the job is assigned to a memory block 4. Simulated execution of a job, the job has 320 instructions, that its address space for 32, using FIFO, LRU algorithm, and calculate the rate of missing pages
Date : 2025-12-23 Size : 36kb User : 影
[Other] MemoryManagement DL : 0: 内存管野：请求调页处理方式，采用LRU和FIFO两种算法-Memory management field: demand paging approach, using two algorithms LRU and FIFO
Date : 2025-12-23 Size : 18kb User : 刘蕊
[Other] page DL : 0: 模拟操作系统采用OPT、FIFO和LRU算法进行页面置换的过程。设程序中地址范围为0到32767，采用随机数生成256个指令地址，满足50 的地址是顺序执行，25 向前跳，25 向后跳。为满足上述条件，可采取下列方法：设d0 10000，第 n个指令地址为dn，第 n+1 个指令地址为dn+1 ，n的取值范围为0 到255。每次生成一个 1 到1024范围内的随机数a，如果a落在1 到512 范围内，则dn+1 dn+1。如果a落在513 到768范围内，则设置dn+1 为1 到dn范围内一个随机数。如果a落在769 到1024范围内，则设置dn+1 为dn到32767范围内一个随机数。页面大小的取值范围为1K，2K，4K，8K，16K 。按照页面大小将指令地址转化为页号。对于相邻相同的页号，合并为一个。分配给程序的内存块数取值范围为1 块，2 块，直到程序的页面数。 6、分别采用OPT、FIFO 和LRU算法对页号序列进行调度，计算出对应的缺页中断率。打印出页面大小、分配给程序的内存块数、算法名、对应的缺页中断率。操作系统页面置换算法通过c++实现 -Simulation operating system uses OPT, FIFO and LRU page replacement algorithm process. Let the program addresses the range of 0 to 32767, using a random number generator 256 instruction address, the address is to meet 50 of the order, a 25 jump forward, jump back 25 . To meet the above conditions, you can take the following methods: Let d0 10000, n-th instruction address is dn, the first n+1 instruction address dn+1, n the range of 0-255. 1-1024 each generate a random number within a range, if a falls within the range of 1-512, the dn+1 dn+1. If a falls within the range of 513-768, set dn+1 within the range of 1 to dn a random number. If a falls within the range of 769-1024, is set to dn dn+1 to a random number within the range of 32767. Page size in the range of 1K, 2K, 4K, 8K, 16K. Follow the page size of the instruction address into the page number. For the same adjacent page numbers, into one. Memory blocks allocated to the program in the range of 1, 2, until the page number
Date : 2025-12-23 Size : 2.52mb User : 黄keke