A METHOD OF JAVA JIT COMPILING USING PSEUDO PROFILE AND SYSTEM THEREOF

摘要

A java JIT(Java Just-In-Time) compiling method and a system thereof using a virtual profile are provided to minimize profile overhead and control time required for information collected by a profile to be stored in a memory to reduce memory capacity. A JIT compiling method of a java virtual machine includes a step of interpreting an inputted byte-code program(1110), a step of triggering a JIT compiler(1120), a step of virtually executing the program without changing values of a memory and a register of the byte-code program, and a step of performing compiling according to the JIT compiler using the program execution result(1140). The step of virtually executing the program stores a flow result of a conditional branch of the program.