Wednesday, May 26, 2010

Need for Just In Time compiler


Basic function of just in time compiler is to transform bytecode into machine dependent code. Instead of interpreting bytecod line by line, it converts bytecode into machine dependent code very fast (It tries to identify which instructions will be executed next, so that it can execute code in advance). It's used to increase the performance. One can see the performance difference if the same method is called more than one time.

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