LevelDB系列文章
LevelDB源码注释仓库：https://github.com/sakura-ysy/LevelDB-annotated LevelDB
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db_bench源码(三)：Histogram统计图的使用
在对 RocksDB 进行压测时，如果想要瞬时得到每个操作的时延，那很好办，只需要在执行完之后输出一下时间差即可。但是现在，如果想输出以往所有操作的最小时延、最大时延、平均时延、百分比时延甚至是所有时延，该怎么办？
最粗暴的方式，把之前的所
2023-08-05
MIT6.s081 / MIT6.1810
github 代码仓库
Lab1: Xv6 and Unix utilities
Lab2: system calls
Lab3: page tables
Lab4: traps
Lab5: Copy-on-Write Fork
2023-08-04
MIT6.1810-Lab7: network driver
Lab: network driver
You’ll use a network device called the E1000 to handle network communication. To xv6 (and the driver
2023-08-04
MIT6.1810-Lab6: Multithreading
Lab: Multithreading
This lab will familiarize you with multithreading. You will implement switching between threads in a
2023-08-04
MIT6.1810-Lab5: Copy-on-Write Fork for xv6
Lab: Copy-on-Write Fork for xv6
Virtual memory provides a level of indirection: the kernel can intercept memory referenc
2023-08-04
MIT6.1810-Lab4: traps
Lab: traps
This lab explores how system calls are implemented using traps. You will first do a warm-up exercises with st
2023-08-04
MIT6.1810-Lab3: page tables
Lab: page tables
In this lab you will explore page tables and modify them to speed up certain system calls and to detect
2023-08-04
MIT6.1810-Lab2: system calls
Lab: system calls
In the last lab you used system calls to write a few utilities. In this lab you will add some new syst
2023-08-04
MIT6.1810-Lab1: Xv6 and Unix utilities
Lab: Xv6 and Unix utilities本 lab 为入门实验，旨在对 xv6 有个基础的了解，并学会如何编写用户态的 uitlities，难度较小，无需阅读 xv6 book。一共分为 6 个子 lab。
Boot xv6
2023-08-04
db_bench源码(二)：mixgraph负载的源码解读
最近在用 mixgraph 负载对 RocksDB 进行测试，其是 facebook 提供的一种基于 db_bench 输入的负载，整合在了 RocksDB 的源码中，同 fillrandom、fillseq 等等一样的调用流程。
苦于 m
2023-08-04