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.
Facebook也使用PHP，但它已经为它建立一个编译器，以便它可以分为本地代码打开了Web服务器，从而提高性能。
Facebook still USES PHP, but it has built a compiler for it so it can be turned into native code on its web servers, thus boosting performance.
程序运行时，JIT编译器选择将最频繁执行的方法编译成本地代码。
JIT compilers selectively compile the most frequently executing methods to native code while programs are running.
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。
The AOT-compiled code is the equivalent to the native code the JIT compiler would generate if it used a fixed optimisation level.
jxeinajar工具编译JAR文件中的方法并构造一个JXE 文件，后者包含原始 JAR 文件的内容以及AOT编译器生成的本地代码。
The jxeinajar tool compiles the methods in a JAR file and constructs a JXE file that contains both the contents of the original JAR file and the native code generated by the AOT compiler.
第一步，AOT代码生成(使用jxeinajar工具)，使用AOT编译器生成本地代码。
The first step, AOT code generation (using the jxeinajar tool), generates native code using the AOT compiler.
本地代码的另一个使用是描述了JIT编译器的输出，机器代码事实上是运行在运行时上。
The other use of the phrase native code is to describe the output of the JIT compiler, the machine code that actually runs in the runtime.
本地代码的另一个使用是描述了JIT编译器的输出，机器代码事实上是运行在运行时上。
The other use of the phrase native code is to describe the output of the JIT compiler, the machine code that actually runs in the runtime.
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