Multi-application Execution on Smartphone: Battery-Lifetime and Age Enhancement

Abstract

Providing effective energy efficiency and power consumption for mobile devices is critical, especially since battery usage and age impacts on battery life. Modern smartphone systems employ various different core types that are suitable for different workloads and to increase performance. However, power management and thermal management are still not satisfactory for many users. In this respect, Dynamic Voltage Frequency Scaling (DVFS) is used to control voltage and frequency, and is used in almost every computer. Furthermore, because thermal management affects every platform to enhance systems reliability and prevent early failure. This project shows how DVFS and and threads partitioning for thermal management, together with placing limits on execution time, can be applied using up to eight cores to run multiple Android applications simultaneously. This approach was validated using a Gem5 simulator and ARM architecture with the aid of a power modeling tool and a temperature melding tool (McPAT and Hotspot).