为了消除解释的高性能代价，JIT编译器选择将频繁执行的代码直接转换为CPU的本地指令。

To eliminate interpretation's high performance cost, a JIT compiler selects frequently executed code to be translated directly to the CPU's native instructions.

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所有客户端的请求都被转换成一系列VU指令，因此，在网页上只需点一下鼠标就可以产生数千行VU代码。

All of the client requests are translated into a series of VU commands; therefore, a single click on a Web page may generate thousands of lines of VU code.

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一旦您掌握了细节，就可以将消息发送到ksymoops实用程序，它将试图将代码转换为指令并将堆栈值映射到内核符号。

Once you capture the details, the message then can be passed to the ksymoops utility, which attempts to convert the code to instructions and map stack values to kernel symbols.

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And that does two things: bug one, it helps catch bugs in your code, and secondly it often converts it into a more efficient sequence of instructions before you actually go off and run it. All right?

这有两点好处：,第一是可以帮助你发现程序中的，第二是把你的代码,在运行之前,转换为更有效率的指令的集合，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选