Research on task scheduling method of synthesis parameter in μC/OS-II

muC/OS-II uses a single algorithm to assign the task priority while the real-time tasks are scheduled. Because of the singularity of priority determinant standard, the high deadline miss ration of real-time tasks influence the real-time scheduling performance seriously. Aiming at this problem, based on the real-time task scheduling algorithm, an allocation strategy of synthesis parameter task priority and the new task scheduling method of muC/OS-II which synthetizes several characteristic parameters are proposed. By experiment verification, DMR of synthesis parameter scheduling algorithm is lower than that of single scheduling method. Consequently, the synthesis parameter scheduling algorithm improves the muC/OS-IIpsilas real-time scheduling performance effectively.