Linux内存管理mmap 的相关内容

Linux内存管理之mmap详解

作者：freeboy1015 来源：http://lib.csdn.net/article/linux/62126 一. mmap系统调用 mmap系统调用 mmap将一个文件或者其它对象映射进内存。文件被映射到多个页上，如果文件的大小不是所有页的大小之和，最后一个页不被使用的空间将会清零。munm...

Linux内存管理之mmap详解【转】

转自：http://blog.chinaunix.net/uid-26669729-id-3077015.html 一. mmap系统调用 1. mmap系统调用 mmap将一个文件或...

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Linux内存管理之mmap详解

Linux内存管理之mmap详解一. mmap系统调用 1. mmap系统调用 mmap将一个文件或者其它对象映射进内存。文件被映射到多个页上，如果文件的大小不是所有页的大小之和，最...

Linux内存管理之mmap详解

http://kenby.iteye.com/blog/1164700 共享内存可以说是最有用的进程间通信方式，也是最快的IPC形式, 因为进程可以直接读写内存，而不需要任何数据的拷贝。对于像管道和消息队列等通信方式，则需要在内核和用户空间进行四次的数据拷贝，而共享内存则只拷贝两次数据: 一次从...

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