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everystep

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该项目最初为写名校 lab 过程中留下了的记录,但是因为学术诚信的缘故,公开解决方案甚至代码是不合适的。但是直接删了有点可惜,后来想尝试换一门语言重写 lab/proj/hw 等内容,所以逐渐演化为用其他语言重写,造轮子过程中的笔记。例如从零实现 OS/Compiler/DB/ld 等,此外和课程答案相关的内容确实会逐渐删去。

⛽ 从零实现 BitCask 存储引擎
  • Part 1. 一条数据的数据编码解码过程
  • Part 2. 如何使用存储引擎?
  • Part 3 Set、Get 方法实现
  • Part 4 删除逻辑和 Compact
🧊 从零实现 LSM-Tree 存储引擎
  • Part 1. 总览
  • Part 2. 查询、写入过程
  • Part 3. 实现
  • Part 4. 优化
🤖 从零实现关系型数据库
  • Part 1. 总览
  • Part 2. 实现 Tuple
  • Part 3. 实现 Page
  • Part 4. 实现 HeapFile
  • Part 5. 支持 int 和 string 等数据类型。
  • Part 6. 实现 Catalog
🦄 6.S081 2020 Operation System
  • Part 1. Lab util
  • Part 2. Lab syscall
  • Part 3. 实现 Page
  • Part 4. Lab pgtbl
  • Part 5. Lab trap
  • Part 6. Lab cow
  • Part 7. Lab thread
  • Part 8. Lab lock
  • Part 9. Lab fs
  • Part 10. Lab mmap
  • Part 11. Lab net
🎡 6.830 2021 实现一个关系型 DB
  • Part 1. Lab 1: SimpleDB
  • Part 2. Lab 2: SimpleDB Operators
  • Part 3. Lab 3: Query Optimization
  • Part 4. Lab 4: SimpleDB Transactions
  • Part 5. Lab 5: B+ Tree Index
  • Part 6. Lab 6: Rollback and Recovery
🎉 6.824 2022 分布式系统

思考

写代码时要紧紧抓住 “我当前所面临的问题是什么?”否则很容易浪费时间。其次是要不断的去问为什么,思考背后的原理,动机,搞清楚对哪部分内容认识不到位。总之个人知识库,记录所学,如有错误还请指正。

为降低复杂度,便于理解旨在提供最简单的实现。整个项目以问题为导向,紧紧围绕着当前所面临的问题是什么?如何解决?解决后产生的新问题是什么?记录了实现系统过程中所遇到的问题,以书籍的形式组织起来更合适,故没有将其放到blog中。

本地运行

git clone https://github.com/weijiew/everystep.git
cd everystep && mdbook serve --open
kill $(lsof -t -i:3000) ;  mdbook serve --open

贡献

大部分项目已经将问题拆解为努努力就能实现的地步了。但是因为时间不多没有仔细润色,文字一定程度存在割裂感,故欢迎任何意义上能够优化项目的贡献。

Star 历史

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协议

2019 - 2023 ©weijiew. Released under the CC BY-NC-SA 4.0 International License.

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