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xv6笔记：chapt3 Page tables
Why using page tables?
Isolate different process’s address spaces and to multiplex them onto a sing...
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MIT6.s081 lab2记录：编写系统调用独立完成整个lab2的作业，评分如下：
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并行软件设计—以“质数并行筛选”为例并行编程
为什么要并行编程？
主进程可以在子进程执行的时候执行其他事务，提高时间效率。这个想法可以分为三个部分：
过程（process）：在子进程执行的同时，推进自己的计算
通信（communication）：...
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Command-line EnvironmentJob Control
lots of SIGNALS to control jobs
The flowing commands show how to control jobs in term...
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MIT6.s081 lab3记录：页表Print a page table
1234567891011page table 0x0000000087f6e000 ..0: pte 0x0000000021fda801 pa 0x0000000087...
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C++ Learning Roadmap
STLoverview of STL
why use c++ for development?
community
developing or evolving
open source (unlike J...
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Template MetaprogrammingMotivating example1234567891011121314#include<vector>#include<deque>#include<set>#i...
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vim一个有趣的idea
programming vim through its interface
vim接口(interfaces)自身就是一个编程语言
我们可以组合多种按键以达到难以置信的effect
一旦形成肌肉记忆，我们就能以思考的...
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Notes on Missing semesterlesson 1environment variables
PATH
shell搜索程序时，会去寻找PATH列表的所有路径下匹配的程序
实用命令
which
显示所运行程序的所在路径
cd -
...
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lecture 01 Course About
managing complexity
tool: mastering abstraction
abstraction is giving sth a name and talking about ...