A tool-supported approach for modular design of energy-aware software

The reduction of energy usage by software-controlled systems has many advantages, including prolonged battery life and reduction of greenhouse gas emissions. Thus, being able to implement energy optimization in software is essential. This requires a model of the energy utilization—or more general resource utilization—for each component in the system. Optimizer components, then, analyze resource utilization of other components in terms of such a model and adapt their behavior accordingly. We have devised a notation for Resource-Utilization Models (RUMs) that can be part of a component's application programming interface (API) to facilitate the modular implementation of optimizers. In this paper, we present tools for extracting such RUMs from components with an existing implementation