# MIT6.S081

## MIT6.S081

- [简介](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/readme.md)
- [Lec01 Introduction and Examples (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples.md)
- [1.1 课程内容简介](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.1-ke-cheng-jian-jie.md)
- [1.2 操作系统结构](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.2-cao-zuo-xi-tong-jie-gou.md)
- [1.3 Why Hard and Interesting](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.3-why-hard-and-interesting.md)
- [1.4 课程结构和资源](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.4-ke-cheng-zi-yuan.md)
- [1.5 read, write, exit系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.5-some-systemcalls.md)
- [1.6 open系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.6-open-xi-tong-tiao-yong.md)
- [1.7 Shell](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.7-shell.md)
- [1.8 fork系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.8-fork.md)
- [1.9 exec, wait系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.9-exec-and-wait-systemcall.md)
- [1.10 I/O Redirect](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec01-introduction-and-examples/1.10-io-redirect.md)
- [Lec03 OS Organization and System Calls (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls.md)
- [3.1 上一节课回顾](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.1-shang-jie-ke-hui-gu.md)
- [3.2 操作系统隔离性（isolation）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.2-cao-zuo-xi-tong-ge-li-xing-isolation.md)
- [3.3 操作系统防御性（Defensive）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.3-cao-zuo-xi-tong-fang-yu-xing-defensive.md)
- [3.4 硬件对于强隔离的支持](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.4-ying-jian-dui-yu-qiang-ge-li-de-zhi-chi.md)
- [3.5 User/Kernel mode切换](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.5-user-kernel-mode-switch.md)
- [3.6 宏内核 vs 微内核 （Monolithic Kernel vs Micro Kernel）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.6-monolithic-kernel-vs-micro-kernel.md)
- [3.7 编译运行kernel](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.7-bian-yi-yun-xing-kernel.md)
- [3.8 QEMU](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.8-qemu.md)
- [3.9 XV6 启动过程](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec03-os-organization-and-system-calls/3.9-xv6-qi-dong-guo-cheng.md)
- [Lec04 Page tables (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans.md)
- [4.1 课程内容简介](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.1-ke-cheng-nei-rong-jian-jie.md)
- [4.2 地址空间（Address Spaces）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.2-di-zhi-kong-jian-address-spaces.md)
- [4.3 页表（Page Table）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.3-ye-biao-page-table.md)
- [4.4 页表缓存（Translation Lookaside Buffer）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.4-ye-biao-huan-cun-translation-lookaside-buffer.md)
- [4.5 Kernel Page Table](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.5-kernel-page-table.md)
- [4.6 kvminit 函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.6-kvminit-han-shu.md)
- [4.7 kvminithart 函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.7-kvminithart.md)
- [4.8 walk 函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec04-page-tables-frans/4.8-walk-han-shu.md)
- [Lec05 Calling conventions and stack frames RISC-V (TA)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v.md)
- [5.1 C程序到汇编程序的转换](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.1-introduction-to-lecture05.md)
- [5.2 RISC-V vs x86](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.2-risc-v-vs-x86.md)
- [5.3 gdb和汇编代码执行](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.3-gdb-he-hui-bian-dai-ma-zhi-hang.md)
- [5.4 RISC-V寄存器](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.4-risc-v-ji-cun-qi.md)
- [5.5 Stack](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.5-stack.md)
- [5.6 Struct](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec05-calling-conventions-and-stack-frames-risc-v/5.6-struct.md)
- [Lec06 Isolation & system call entry/exit (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert.md)
- [6.1 Trap机制](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.1-trap.md)
- [6.2 Trap代码执行流程](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.2-trap-dai-ma-zhi-xing-liu-cheng.md)
- [6.3 ECALL指令之前的状态](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.3-before-ecall.md)
- [6.4 ECALL指令之后的状态](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.4-ecall-zhi-ling-zhi-hou-de-zhuang-tai.md)
- [6.5 uservec函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.5-uservec.md)
- [6.6 usertrap函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.6-usertrap.md)
- [6.7 usertrapret函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.7-usertrapret.md)
- [6.8 userret函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec06-isolation-and-system-call-entry-exit-robert/6.8-userret.md)
- [Lec08 Page faults (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans.md)
- [8.1 Page Fault Basics](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.1-page-fault-basics.md)
- [8.2 Lazy page allocation](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.2-lazy-page-allocation.md)
- [8.3 Zero Fill On Demand](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.3-zero-fill-on-demand.md)
- [8.4 Copy On Write Fork](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.4-copy-on-write-fork.md)
- [8.5 Demand Paging](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.5-demand-paging.md)
- [8.6 Memory Mapped Files](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec08-page-faults-frans/8.6-memory-mapped-files.md)
- [Lec09 Interrupts (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts.md)
- [9.1 真实操作系统内存使用情况](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.1-memory-in-real-os.md)
- [9.2 Interrupt硬件部分](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.2-interrupt-handware.md)
- [9.3 设备驱动概述](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.3-device-driver.md)
- [9.4 在XV6中设置中断](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.4-xv6-set-interrupt.md)
- [9.5 UART驱动的top部分](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.5-uart-driver-top.md)
- [9.6 UART驱动的bottom部分](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.6-uart-driver-bottom.md)
- [9.7 Interrupt相关的并发](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.7-interrupt-related-concurrency.md)
- [9.8 UART读取键盘输入](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.8-uart-read-keyboard.md)
- [9.9 Interrupt的演进](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec09-interrupts/9.9-interrupt-envolving.md)
- [Lec10 Multiprocessors and locking (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking.md)
- [10.1 为什么要使用锁？](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.1-why-lock.md)
- [10.2 锁如何避免race condition？](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.2-avoid-race-condition.md)
- [10.3 什么时候使用锁？](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.3-when-use-lock.md)
- [10.4 锁的特性和死锁](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.4-locks-properties-and-deadlock.md)
- [10.5 锁与性能](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.5-suo-yu-xing-neng.md)
- [10.6 XV6中UART模块对于锁的使用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.6-case-study-uart.md)
- [10.7 自旋锁（Spin lock）的实现（一）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.7-spin-lock-1.md)
- [10.8 自旋锁（Spin lock）的实现（二）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec10-multiprocessors-and-locking/10.8-spin-lock-2.md)
- [Lec11 Thread switching (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert.md)
- [11.1 线程（Thread）概述](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.1-thread.md)
- [11.2 XV6线程调度](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.2-xian-cheng-diao-du.md)
- [11.3 XV6线程切换（一）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.3-xv6-thread-switching-1.md)
- [11.4 XV6线程切换（二）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.4-xv6-thread-switching-2.md)
- [11.5 XV6进程切换示例程序](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.5-xv6-thread-switching-code.md)
- [11.6 XV6线程切换 --- yield/sched函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.6-yield-and-sched.md)
- [11.7 XV6线程切换 --- switch函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.7-xv6-switch-function.md)
- [11.8 XV6线程切换 --- scheduler函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.8-xv6-scheduler-function.md)
- [11.9 XV6线程第一次调用switch函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec11-thread-switching-robert/11.9-xv6-call-switch-function-first-time.md)
- [Lec13 Sleep & Wake up (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert.md)
- [13.1 线程切换过程中锁的限制](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.1-lock-limitation-during-thread-switching.md)
- [13.2 Sleep\&Wakeup 接口](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.2-sleep-wakeup.md)
- [13.3 Lost wakeup](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.3-lost-wakeup.md)
- [13.4 如何避免Lost wakeup](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.4-avoid-lock-wakeup.md)
- [13.5 Pipe中的sleep和wakeup](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.5-sleep-and-wakeup-in-pipe.md)
- [13.6 exit系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.6-exit-systemcall.md)
- [13.7 wait系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.7-wait-systemcall.md)
- [13.8 kill系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec13-sleep-and-wakeup-robert/13.8-kill-systemcall.md)
- [Lec14 File systems (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans.md)
- [14.1 Why Interesting](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.1-why-interesting.md)
- [14.2 File system实现概述](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.2-file-system-api.md)
- [14.3 How file system uses disk](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.3-how-file-system-uses-disk.md)
- [14.4 inode](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.4-inode.md)
- [14.5 File system工作示例](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.5-file-system-example.md)
- [14.6 XV6创建inode代码展示](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.6-xv6-code-inode.md)
- [14.7 Sleep Lock](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec14-file-systems-frans/14.7-sleep-lock.md)
- [Lec15 Crash recovery (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans.md)
- [15.1 File system crash概述](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.1-file-system-crash-gaishu.md)
- [15.2 File system crash示例](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.2-file-system-crash-shi-li.md)
- [15.3 File system logging](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.3-file-system-logging.md)
- [15.4 log\_write函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.4-log-write-han-shu.md)
- [15.5 end\_op函数](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.5-endop-han-shu.md)
- [15.6 File system recovering](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.6-file-system-recovering.md)
- [15.7 Log写磁盘流程](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.7-log-xie-ci-pan-liu-cheng.md)
- [15.8 File system challenges](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec15-crash-recovery-frans/15.8-file-system-challenges.md)
- [Lec16 File system performance and fast crash recovery (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert.md)
- [16.1 Why logging](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.1-why-logging.md)
- [16.2 XV6 File system logging回顾](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.2-xv6-file-system-logging-hui-gu.md)
- [16.3 ext3 file system log format](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.3-ext3-file-system-log-format.md)
- [16.4 ext3如何提升性能](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.4-ext3-ru-he-ti-sheng-xing-neng.md)
- [16.5 ext3文件系统调用格式](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.5-ext3-wen-jian-xi-tong-diao-yong-ge-shi.md)
- [16.6 ext3 transaction commit步骤](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.6-ext3-transaction-commit-bu-zhou.md)
- [16.7 ext3 file system恢复过程](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.7-file-system-hui-fu-guo-cheng.md)
- [16.8 为什么新transaction需要等前一个transaction中系统调用执行完成](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.8-transaction-concurrency.md)
- [16.9 总结](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec16-file-system-performance-and-fast-crash-recovery-robert/16.9-zong-jie.md)
- [Lec17 Virtual memory for applications (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans.md)
- [17.1 应用程序使用虚拟内存所需要的特性](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.1-ying-yong-cheng-xu-shi-yong-xu-ni-nei-cun-suo-xu-yao-de-te-xing.md)
- [17.2 支持应用程序使用虚拟内存的系统调用](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.2-zhi-chi-ying-yong-cheng-xu-shi-yong-xu-ni-nei-cun-de-xi-tong-tiao-yong.md)
- [17.3 虚拟内存系统如何支持用户应用程序](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.3-xu-ni-nei-cun-xi-tong-zhi-chi-yong-hu-cheng-xu.md)
- [17.4 构建大的缓存表](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.4-build-large-cache.md)
- [17.5 Baker's Real-Time Copying Garbage Collector](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.5-bakers-garbage-collector.md)
- [17.6 使用虚拟内存特性的GC](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.6-shi-yong-xu-ni-nei-cun-te-xing-de-gc.md)
- [17.7 使用虚拟内存特性的GC代码展示](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec17-virtual-memory-for-applications-frans/17.7-shi-yong-xu-ni-nei-cun-te-xing-de-gc-dai-ma-zhan-shi.md)
- [Lec18 OS organization (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert.md)
- [18.1 Monolithic kernel](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.1-monolithic-kernel.md)
- [18.2 Micro kernel](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.2-micro-kernel.md)
- [18.3 Why micro kernel?](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.3-why-micro-kernel.md)
- [18.4 L4 micro kernel](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.4-l4-micro-kernel.md)
- [18.5 Improving IPC by Kernel Design](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.5-improving-ipc-by-kernel-design.md)
- [18.6 Run Linux on top of L4 micro kernel](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.6-run-linux-on-top-of-l4-micro-kernel.md)
- [18.7 L4 Linux性能分析](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec18-os-organization-robert/18.7-l4-linux-performance.md)
- [Lec19 Virtual Machines (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert.md)
- [19.1 Why Virtual Machine?](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.1-why-virtual-machine.md)
- [19.2 Trap-and-Emulate --- Trap](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.2-trap-and-emulate-trap.md)
- [19.3 Trap-and-Emulate --- Emulate](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.3-trap-and-emulate-emulate.md)
- [19.4 Trap-and-Emulate --- Page Table](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.4-trap-and-emulate-page-table.md)
- [19.5 Trap-and-Emulate --- Devices](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.5-trap-and-emulate-devices.md)
- [19.6 硬件对虚拟机的支持](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.6-ying-jian-dui-xu-ni-ji-de-zhi-chi.md)
- [19.7 Dune: Safe User-level Access to Privileged CPU Features](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec19-virtual-machines-robert/19.7-dune.md)
- [Lec20 Kernels and HLL (Frans)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans.md)
- [20.1 C语言实现操作系统的优劣势](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.1-c-yu-yan-shi-xian-cao-zuo-xi-tong-de-you-lie-shi.md)
- [20.2 高级编程语言实现操作系统的优劣势](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.2-gao-ji-bian-cheng-yu-yan-shi-xian-cao-zuo-xi-tong-de-you-lie-shi.md)
- [20.3 高级编程语言选择 --- Golang](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.3-choose-golang.md)
- [20.4 Biscuit](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.4-biscuit.md)
- [20.5 Heap exhaustion](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.5-heap-exhaustion.md)
- [20.6 Heap exhaustion solution](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.6-heap-exhaustion-solution.md)
- [20.7 Evaluation: HLL benefits](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.7-evaluation-hll-benefits.md)
- [20.8 Evaluation: HLL performance cost(1)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.8-evaluation-hll-performance-cost-1.md)
- [20.9 Evaluation: HLL performance cost(2)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.9-evaluation-hll-performance-cost-2.md)
- [20.10 Should one use HLL for a new kernel?](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec20-kernels-and-hll-frans/20.10-should-one-use-hll-for-a-new-kernel.md)
- [Lec21 Networking (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert.md)
- [21.1计算机网络概述](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.1-ji-suan-ji-wang-luo-gai-shu.md)
- [21.2 二层网络 --- Ethernet](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.2-er-ceng-wang-luo-ethernet.md)
- [21.3 二/三层地址转换 --- ARP](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.3-er-san-ceng-di-zhi-zhuan-huan-arp.md)
- [21.4 三层网络 --- Internet](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.4-san-ceng-wang-luo-internet.md)
- [21.5 四层网络 --- UDP](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.5-si-ceng-wang-luo-udp.md)
- [21.6 网络协议栈（Network Stack）](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.6-wang-lu-xie-yi-zhan-network-stack.md)
- [21.7 Ring Buffer](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.7-ring-buffer.md)
- [21.8 Receive Livelock](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.8-receive-livelock.md)
- [21.9 如何解决Livelock](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec21-networking-robert/21.9-ru-he-jie-jue-livelock.md)
- [Lec22 Meltdown (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert.md)
- [22.1 Meltdown发生的背景](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.1-meltdown-fa-sheng-de-bei-jing.md)
- [22.2 Speculative execution(1)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.2-speculative-execution-1.md)
- [22.3 Speculative execution(2)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.3-speculative-execution-2.md)
- [22.4 CPU caches](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.4-cpu-caches.md)
- [22.5 Flush and Reload](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.5-flush-and-reload.md)
- [22.6 Meltdown Attack](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.6-meltdown-attack.md)
- [22.7 Meltdown Fix](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec22-meltdown-robert/22.7-meltdown-fix.md)
- [Lec23 RCU (Robert)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert.md)
- [23.1 使用锁带来的问题](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.1-shi-yong-suo-dai-lai-de-wen-ti.md)
- [23.2 读写锁 (Read-Write Lock)](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.2-du-xie-suo-readwrite-lock.md)
- [23.3 RCU实现(1) - 基本实现](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.3-rcu-shi-xian-1-ji-ben-shi-xian.md)
- [23.4 RCU实现(2) - Memory barrier](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.4-rcu-shi-xian-2-memory-barrier.md)
- [23.5 RCU实现(3) - 读写规则](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.5-rcu-shi-xian-3-du-xie-xian-zhi.md)
- [23.6 RCU用例代码](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.6-rcu-yong-li-dai-ma.md)
- [23.7 RCU总结](https://mit-public-courses-cn-translatio.gitbook.io/mit6-s081/lec23-rcu-robert/23.7-rcu-zong-jie.md)


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