ParseTree is a great extension for investigating internals of Ruby, code optimisation etc.

ParseTree 是个很棒的扩展，可以用来研究Ruby内部以及代码优化等。

youdao

The AOT-compiled code is the equivalent to the native code the JIT compiler would generate if it used a fixed optimisation level.

如果JIT使用了一种固定的优化级别，那么AOT编译的代码就等同于JIT编译器生成的本地代码。

youdao

This additional optimisation takes extra time, but the fact that the code will subsequently run faster more than makes up for it.

ECONOMIST: Transmetamorphosis