In real-Time systems such as automobiles, correctness of processing tasks depends not only on its result, but also on time. Real-Time scheduling is a basic approache to achieve real-Time execution in real-Time systems. Fluid scheduling is an optimal real-Time scheduling model, which keeps the execution speed of each task proportional to its processor utilization. However, the speed of a task cannot be controlled arbitrarily on a general processor, making it impossible to implement fluid scheduling directly. Therefore, there have been many studies on pseudo fluid scheduling where the algorithm is based on repeat task execution which speed is constant in an interval. We apply the special mechanisms of Responsive MultiThreaded Processor (RMTP) to the novel control mechanism in order to implement fluid scheduling directly. RMTP is a prioritized SMT processor for real-Time processing, which has 1. a thread speed control mechanism which controls execution speed of each thread and 2. a context cache enabling context switches in four clock cycles. In this paper, by adding a novel thread speed control mechanism, execution speeds of 40 threads are controlled to be constant over short time intervals, directly making fluid scheduling possible.