54

Linux 内存管理-Rody的博客-51CTO博客

 6 years ago
source link: http://blog.51cto.com/13376824/2069551
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
Linux将它的物理内存虚拟化。进程并不能直接在物理内存上寻址,而是由Linux内核为每个进程维护一个特殊的虚拟地址空间(virtualaddressspace)。这个地址空间是线性的,从0开始,到某个最大值。虚拟空间由许多页组成。系统的体系结构以及机型决定了页的大小(页的大小是固定的),典型的页的大小包括4K(32位系统)和8K(64位系统)。每个页面都只有无效(invalid)和有效(vali

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK