If it is possible to regulate program execution speed, we can control program execution speed arbitrarily regardless of hardware performance to improve convenience of service. We proposed mechanism to regulate program execution speed. The proposed mechanism can control only one process, but can't control multiple processes. However, since in most cases one service consists of multiple processes, it is necessary to establish multiple processes control mechanism for regulating program execution speed. There are numerous combinations of processes when multiple processes are controlled. Therefore the execution speed of all processes need to be regulated smoothly in all combinations. We show basic mechanism for regulating program execution speed, and describe the problem and treatment for multiple processes control mechanism. And this paper reports the result of evaluation.