Intelligent governor for low-power mobile application processors

Author

Hyung Beom Jang ; Jae Min Kim ; Hoi-Jin Lee ; Sung Woo Chung ; Youngmin Shin ; Jae Cheol Son

Author_Institution

Samsung Electron., Giheung, South Korea

fYear

2013

fDate

17-19 Nov. 2013

Firstpage

206

Lastpage

207

Abstract

This paper introduces the power management schemes that control DVFS (Dynamic Voltage and Frequency Scaling) and core shutdown considering the characteristics of an application for the commercial application processors. Most power management schemes used in commercial application processors only monitor the CPU utilization to adjust the CPU frequency. Since recent application processors adopt multi-core CPU, the power management scheme, such as Hotplug, is necessary to manage the power state of the cores. However, none of the schemes mentioned above looks into the application characteristics for the power management. In this paper, we show that considering application characteristics is more beneficial for power management of recent commercial application processors.

Keywords

low-power electronics; mobile radio; multiprocessing systems; smart phones; CPU frequency; CPU utilization; DVFS control; Hotplug; commercial application processors; core shutdown; dynamic voltage; frequency scaling; intelligent governor; low-power mobile application processors; multicore CPU; power management schemes; Androids; Energy consumption; Humanoid robots; Monitoring; Power demand; Program processors; Smart phones; android system; power management; scaling governor; smartphone;

fLanguage

English

Publisher

ieee

Conference_Titel

SoC Design Conference (ISOCC), 2013 International

Conference_Location

Busan

Type

conf

DOI

10.1109/ISOCC.2013.6864008

Filename

6864008