Research and analysis of embedded real-time systems at EDF scheduling algorithm under uncertain environments

The real-time scheduling algorithms of most embedded systems are adjusted in accordance with the worst execution time scheduling of the mission, which would be a waste of resources. For the real-time application requirements of network multimedia systems, and the deficiencies of the real-time performance of the current scheduling algorithm, this paper firstly analyzes the representative dynamic EDF scheduling algorithm of the embedded real-time system, then sets up a set of models of periodic tasks, based on the model, puts forward an improved EDF scheduling algorithm, and finally verifies the effectiveness of the EDF scheduling algorithm by experiment.