#23: What is JIT?

Just In Time Compiler: A Compiler responsible for Converting IL Code to Native CPU Instructions.

Note: JIT Compiles the IL Code only once,when you execute the program For the first time.The next time when the program is executed ,the JIT does not compile,but instead the call goes directly to memory(since there was no change in IL Code,and the instructions has already been generated during the First time compilation,there is no need for JIT to compile the same old IL Code). 

NGEN.EXE: Tool Available for converting IL Code to Native CPU Instructions.It increases Performance of Applications.It does not utilize JIT. 

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