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Which is faster dynamic compilation or jit compilation?


Asked by Khaleesi Campos on Dec 01, 2021 FAQ



JIT compilation is a form of dynamic compilation, and allows adaptive optimization such as dynamic recompilation – thus, in theory, JIT compilation can yield faster execution than static compilation.
Thereof,
To limit the overhead, many JIT compilers only compile the code paths that are frequently used. Traditionally there are two methods for converting source code into a form that can be run on a platform. Static compilation converts the code into a language for a specific platform. An interpreter directly executes the source code.
Also, A JIT compiler can be faster because the machine code is being generated on the exact machine that it will also execute on. This means that the JIT has the best possible information available to it to emit optimized code.
Consequently,
In computing, just-in-time ( JIT) compilation (also dynamic translation or run-time compilations) is a way of executing computer code that involves compilation during execution of a program – at run time – rather than prior to execution.
In this manner,
Compilers are tools that convert human readable text into machine code. The terms Ahead-of-Time (AOT) and Just-in-Time (JIT) refer to when compilation takes place: the "time" referred to in those terms is "runtime", i.e. a JIT compiler compiles the program as it is running, an AOT compiler compiles the program before it is running.