Dynamic Energy Consumption Reduction Algorithm for Mixed Critical Real-Time Systems with Multi-Core Processors
Subject Areas : electrical and computer engineering
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Keywords: Mixed critical embedded systems, multi-core processors, energy consumption, DVFS,
Abstract :
Today, unlike traditional embedded systems that have tasks with the same degree of importance, many critical embedded systems are mixed and are used more often. Mixed critical systems are real-time embedded systems introduced to consolidate critical safety and non-critical safety programs on a common hardware platform. Multi-core processors provide the ability to integrate different applications on one hardware and can be a suitable choice for mixed critical embedded systems. However, reducing the energy consumption in these systems is a necessary requirement due to the high volume of processing and their generally battery-based design. Therefore, in this paper, an innovative scheduling method is introduced to reduce energy consumption in mixed critical systems consisting of multi-core processors. This algorithm will reduce the energy consumption of the system by DVFS, while ensuring the timely execution of critical tasks. The results obtained from the simulations show that the energy consumption of the proposed algorithm is improved by 30% compared to similar methods.
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