Slack Time Distribution Oriented Energy Aware In Real-Time Control Task

An approach that maintains the sustainable technologies is to improve energy efficiency in the processors that contain embedded systems, stressing its operability. The objective of this work is to define the multirate slack time or green time, from the causes that produce and how to distribute the slack time due the execution of the control tasks i (T-i) intra/interTask, taking advantage of the operations of the multirate control and variability of computation time, to adjust the energy consumed by it. It appealed to the integration of the multirate control, real-time scheduling and dynamic voltage and frequency scaling techniques. To validate the operation took a set of tasks for benchmark, by varying the computation time consumed. The interTask overall behavior and inter/intratarea local, throw a power consumption of the 44.70 % to 90.00 % and 42.00 % to 86.66 %, respectively. The green time allows you to set time limits on the slack time available inter/intraTask. This contribution promotes the development of sustainable technologies.