問題描述

我就用dockr安裝了個郵件服務器自己用，然后top看了下，嚇死我了，之前都是0點多負載。

問題解答

In Unix-like operating systems, a loop device, vnd (vnode disk), or lofi (loopback file interface) is a pseudo-device that makes a file accessible as a block device.

看上去你的磁盤壓力太大了。

用 iotop 看看。