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博客提交 #126

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Nov 2, 2023
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博客提交 #126

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Update 2023开源操作系统训练营第二阶段总结报告-Beavercat7md.md
Beavercat7 Nov 2, 2023
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Update 2023开源操作系统训练营第二阶段总结报告-Beavercat7md.md
Beavercat7 Nov 2, 2023
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Update 2023开源操作系统训练营第二阶段总结报告-Beavercat7md.md
Beavercat7 Nov 2, 2023
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Update 2023开源操作系统训练营第二阶段总结报告-Beavercat7md.md
Beavercat7 Nov 2, 2023
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9 changes: 5 additions & 4 deletions source/_posts/2023开源操作系统训练营第二阶段总结报告-Beavercat7md.md
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title: 2023开源操作系统训练营第二阶段总结报告-Beavercat7.md
date: 2023-11-02 11:21:15
tag: - author:Beavercat7
tag:
-author: Beavercat7
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这是我第一次参加这种形式的训练营，感觉相当于收获而已，这种体验更让我有强烈的兴奋感，希望借此机会多接触开源，在开源社区中不断精进自己的技术。
在lab1中,利用结构体TaskInfo来追踪一个进程的任务状态,分别调用了哪些系统调用，以及对应的次数,距离任务第一次被调用的时长，然后来完成sys_task_info,这个相对简单,只要了解系统调用的大致流程就行，知道add_syscalltimes要放在syscall函数体内,知道大致代码框架就能写出来。
但是最重要的是,问答题检测了你对于特权级切换的理解，这里才是本章的重点和难点。利用汇编语言操作寄存器。
Expand All @@ -11,6 +15,3 @@ tag: - author:Beavercat7
在lab3中,sys_spawn主要看fork+exec来仿照写,这里不必像fork一样复制父进程的地址空间,是因为exec本身就要替代原进程(包括地址空间)，没必要了。
然后stride调度算法，首先在TaskBlock添加优先级和stride,首先要把所有
初始化和要更新的加上一个stride更新,其次在task.add中,维护一个单调递增的队列。


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