Title :
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
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;
Conference_Titel :
Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on
Conference_Location :
JeJu Island
DOI :
10.1109/ISCE.2014.6884484
