Current mobile devices use a touch boosting scheme to handle operations caused by user interactions with the touchscreen. The current scheme uses a predetermined DVFS step for touch boosting, regardless of user texting speed or related workloads, causing power waste due to unnecessarily high CPU frequency. In particular, the current mechanism is not optimized for power usage when the soft keyboard is used as an input mechanism. In this paper, we propose a scheme called Tbooster, which adaptively adjusts touch boosting level. The scheme reflects texting interval and texting latency, minimizing power consumption while maintaining the user's quality of experience. The scheme was implemented in Android devices and evaluated using a variety of texting applications. Our evaluation results show that the proposed technique reduces the device's overall power consumption by 4.6-13.1%, depending on texting interval and application type.
|Title of host publication||HotMobile 2016 - Proceedings of the 17th International Workshop on Mobile Computing Systems and Applications|
|Publisher||Association for Computing Machinery, Inc|
|Number of pages||6|
|Publication status||Published - 2016 Feb 23|
|Event||17th International Workshop on Mobile Computing Systems and Applications, HotMobile 2016 - St. Augustine, United States|
Duration: 2016 Feb 23 → 2016 Feb 24
|Name||HotMobile 2016 - Proceedings of the 17th International Workshop on Mobile Computing Systems and Applications|
|Other||17th International Workshop on Mobile Computing Systems and Applications, HotMobile 2016|
|Period||16/2/23 → 16/2/24|
Bibliographical notePublisher Copyright:
© 2016 ACM.
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Human-Computer Interaction
- Computer Science Applications