Response time performance estimation in smartphones applying dynamic voltage & frequency scaling and completely fair scheduler

Author

Garcia, Raymond C. ; Jong-moon Chung ; Sung-Woong Jo ; Taeyoung Ha ; Taehyun Kyong

Author_Institution

Army Res. Lab., ICF Int., Adelphi, MD, USA

fYear

2014

fDate

22-25 June 2014

Firstpage

1

Lastpage

2

Abstract

In this paper, a response time performance estimation scheme is proposed for smartphones applying dynamic voltage & frequency scaling (DVFS) at the central processing unit (CPU) and completely fair scheduler (CFS) at the Linux kernel. DVFS techniques influence the overall time performance of the smartphone since changes in CPU operational frequency will change all aspects of the CPUs responsiveness and access speed for task execution. CFS also has significant influence in task execution at the Linux kernel. Results show the effectiveness of the proposed scheme in estimating the instantaneous response time on a LG Optimus G smartphone.

Keywords

Linux; operating system kernels; power aware computing; scheduling; smart phones; software performance evaluation; CFS; CPU operational frequency; DVFS technique; LG Optimus G smartphone; Linux kernel; central processing unit; completely fair scheduler; dynamic voltage-&-frequency scaling; response time performance estimation scheme; task execution; Androids; Humanoid robots; Kernel; Linux; Smart phones; Time factors; Time-frequency analysis; CFS; DVFS; response time; smartphone;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on

Conference_Location

JeJu Island

Type

conf

DOI

10.1109/ISCE.2014.6884484

Filename

6884484