嘻嘻哈哈的部落格(blog)

这俩天在机器上搜大于2G的文件

find / -size +2000000k

居然给搜出了一个“大”文件：/proc/kcore

赶紧找文档看

我的理解大致就是：

这个文件/proc/kcore的大小就是机器的物理内存

他是系统内存的一个map

他并不真正占物理内存那么大的硬盘空间

等等

unixguide.org上讲：

What Is /proc/kcore?
None of the files in /proc are really there–they’re all, "pretend,"
files made up by the kernel, to give you information about the system
and don’t take up any hard disk space.

/proc/kcore is like an "alias" for the memory in your computer. Its
size is the same as the amount of RAM you have, and if you read it as
a file, the kernel does memory reads.

Tags: Linux //