Abstract: Software adaptation is a hot research topic in software field in recent years, but with the change of computing mode brought by edge computing, the current software adaptation methods are difficult to adapt to the equipment resources with huge differences. In order to improve the adaptability of software to equipment resources, the resource consumption of software is modeled and a resource adaptive method based on control theory is proposed, and a resource adaptive controller is designed according to PID control theory. Experiments show that the proposed software adaptive method and resource adaptive controller can adapt to the changes of resources in embedded environment under different load conditions, load changes and different equipment resources. Compared with existing software adaptive methods, the proposed method has better resource adaptive ability.

Key words: resource adaptation, software adaptation, control theory, PID control