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前言前面我们知道了关于物理页面，以及对于物理内存管理的数据结构 page和zone。接下来看看很关键的内存分配。对于分配是物理内存很关键的知识点。这里涉及到一个大名鼎鼎的伙伴系统算法实现对物理内存的分配，但是这个算法不是linux独有的。1、伙伴系统这个系统干啥的呢？那肯定是你申请需要内存的时候，这...

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前言关于物理内存，物理，那肯定是事物，实实在在的东西。对于这种实在的，就需要进行管理，而管理肯定是软件来管理。对于物理内存怎么管理？涉及到的无非就是怎么分配内存、怎么回收整理内存、怎么样提高分配效率、怎么减少浪费？带着这几个想法，我们往下瞅瞅。首先来看看物理页面是什么？1、物理页面前面我们对页这个机...

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