Adaptive Dynamic Voltage and Frequency Scaling Algorithm for Symmetric Multiprocessor Architecture

Symmetric multiprocessor architectures (SMP) are gaining popularity for system on chip (SoC) applications as they provide an interesting power/performance/flexibility tradeoff. We address the problem of power consumption in such architectures by designing a new adaptive Dynamic Voltage Frequency Scaling (DVFS) algorithm for non real time operating system (non-RTOS) running on a SMP-SoC. We show the effectiveness of our algorithm on a cycle accurate simulation environment running a real-life multi-threaded application. The experimental results show a potential gain of up to 55%.