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MIT6.S081_study

将之前学习的MIT6.S081分lab上传,记录,内有注释。

xv6教程中文版:https://th0ar.gitbooks.io/xv6-chinese/content/index.html

xv6课程官网:https://pdos.csail.mit.edu/6.S081/2020/schedule.html

lab1 util

简述 :使⽤⼏个常⻅的系统调⽤编程,熟悉开发环境

难度 :3 easy 3 moderate

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/util.html

lab2 syscall

简述 :添加新的系统调⽤

难度 :2 moderate

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/syscall.html

lab3 pgtbl

简述 :学习xv6的⻚表机制,提⾼⽤户空间和内核空间之间传递数据的效率

难度 :1 easy 2hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/pgtbl.html

lab4 traps

简述 :从系统调⽤⼊⼿梳理中断的全流程

难度 :1 easy 1 moderate 1hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/traps.html

lab5 lazy

简述 :利⽤缺⻚故障实现内存分配的懒分配策略

难度 :1 easy 2 moderate

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/lazy.html

lab6 cow

简述 :利⽤缺⻚故障实现fork系统调⽤的写时复制机制

难度 :1 hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/cow.html

lab7 thread

简述 : 实现⽤户级线程;优化并发程序;实现同步屏障

难度 :3 moderate

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/thread.html

lab8 lock

简述 : 分别在物理内存⻚管理和⽂件缓存⻚管理这两个场景中降低锁竞争,提⾼并发程度进⽽提升性能

难度 : 1 moderate 1 hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/lock.html

lab9 fs

简述 : 让xv6⽀持⼤⽂件(原来只⽀持268MB以下的⽂件);实现符号链接(软链接)

难度 : 2 moderate

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/fs.html

lab10 mmap

简述 : 实现内存映射功能(即mmap系统调⽤)

难度 : 1 hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/mmap.html

lab11 network

简述 : 为⽹络接⼝卡(NIC)编写⼀个xv6设备驱动程序

难度 : 1 hard

地址:https://pdos.csail.mit.edu/6.S081/2020/labs/net.html

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