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ThreadX-Chinese
ThreadX的中文文档,提供了ThreadX实时内核的详细信息.(ThreadX the Chinese documents, provided the ThreadX real-time kernel details.)
- 2008-07-23 17:50:12下载
- 积分:1
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ESP8266PConnectRouterPMQTT
本程序是使用LUA语言编写,适用于ESP8266的node环境,已经测试通过。ESP8266操作系统为FREERTOS(This program is the use of LUA language, suitable for ESP8266 the node environment, has been tested. ESP8266 operating system FREERTOS)
- 2015-09-09 09:08:14下载
- 积分:1
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BYQCKZJ1a
12路交流,24路开关,4路温度等直流测控。主机板的印制板图(12-way AC, 24-way switch, 4-way temperature DC measurement and control.
Printed Board Drawing of Main Board)
- 2019-01-18 18:22:07下载
- 积分:1
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3590
lear about microsoft tool in detail
- 2014-08-21 14:42:37下载
- 积分:1
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FIFOwithc
这是我写的一个关于操作系统的FIFO的过程,希望大学在使用的同时指出不足之处,(This the one I wrote on the operating system FIFO process, in the hope that the University of noted deficiencies, thank you)
- 2005-06-15 19:27:00下载
- 积分:1
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operatingsystem
操作系统页面置换 调度 寻道程序
简短使用(Page seek replacement operating system scheduling procedures)
- 2009-05-17 08:09:54下载
- 积分:1
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subject_3
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">
- 2021-04-27 00:48:45下载
- 积分:1
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FIFOLRU
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)
- 2010-01-08 15:10:19下载
- 积分:1
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file-management-experiment
操作系统文件管理实验:利用交互式命令实现树型目录结构和文件管理,同时利用位示图表示外存的分配情况,新建文件时分配必要的空间,模拟文件分配表记录文件在外存上的存储方式。了解系统对文件的操作。
在文件中保存目录内容,创建文件或子目录可以用命令行命令:MD、CD、RD、MK(创建文件)、DEL(删除文件)和DIR(Operating system file management experiment: the use of interactive command tree directory structure and file management, while taking advantage of the bit map indicates the distribution of the external memory, and allocate the necessary space when a new file is created, the simulation file allocation table log file is stored in the external memory way. Understanding of the system operation on the file. Save the contents of a directory in the file, create a file or subdirectory can use the command-line command: MD, CD, RD, MK (create a file), DEL (delete files) and DIR)
- 2020-12-12 20:49:17下载
- 积分:1
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system
操作系统作业源代码,方便学习操作系统课程的同学使用 (this is the codes for students who learn computer system.)
- 2013-12-30 21:07:39下载
- 积分:1