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内存管理 - 物理内存 #123

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cyningsun opened this issue Jun 14, 2021 · 0 comments

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2021-06-15 00:00:00 +0800 gitment

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cyningsun commented Jun 14, 2021

https://www.cyningsun.com/06-15-2021/memory-management-physical-memory.html

本篇从我自己的角度来写对物理内存管理的理解。由于 Linux 引入了虚拟内存的概念，应用程序对物理内存的访问都是由内核模块来接管的，因此带着以下问题，逐步揭开相关的细节：

内核是使用什么地址访问物理内存的？
物理内存为何需要分区？
伙伴系统和 SLAB 系统有何区别？

页框管理想要管理内存，首先要知道有哪些内存，并且把内存状态记录下来。物理内存默认以

cyningsun added gitment 2021-06-15 00:00:00 +0800 labels

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