Having a Virtual Machine run an empty loop faster than another VM doesn't really tell us much about how these two will compare when running system administration scripts or Rails applications.

一台空转的虚拟机比另外一台快，并不意味着它们在运行系统管理脚本或者Rails应用的时候具有同样的可比性。

youdao

The previous example used just an empty loop, but what happens when the elements of the collection are accessed within the loop?

前面的例子使用了一个空循环，如果在循环中访问集合元素，会发生什么？

youdao