Improving Energy Efficiency of Android Devices by Preventing Redundant Frame Generation
| Autor: | Seokjun Lee, Hojung Cha, Rhan Ha, Geonju Kim, Gwangmin Lee, Yonghun Choi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Computer Networks and Communications
Computer science business.industry 020206 networking & telecommunications 02 engineering and technology Electronic mail Rendering (computer graphics) Display list User experience design Embedded system 0202 electrical engineering electronic engineering information engineering Redundancy (engineering) Electrical and Electronic Engineering Android (operating system) business Mobile device Software Efficient energy use |
| Zdroj: | IEEE Transactions on Mobile Computing. 18:871-884 |
| ISSN: | 2161-9875 1536-1233 |
| Popis: | Managing the power consumption of display-related components in mobile devices is difficult because of performance degradation. Therefore, eliminating hidden workloads, such as redundant frames, is preferable, as it directly reduces power without affecting the user experience. Our preliminary study shows that the default launcher of the Android Open Source Project (AOSP) and popular applications, such as Instagram and Pinterest, generate redundant frames. In this paper, we propose a scheme to optimize the power consumption of the smartphone's display-related components by preventing redundant frames generation. By analyzing the frame-generation process, we observe that redundant frame generation is possible in the current Android framework. We then propose a scheme that recognizes and prevents redundant frame generation before actual frame generation (i.e., frame rendering in the GPU). The proposed scheme utilizes a display list , which was introduced in recent Android smartphones for efficient frame generation. We implemented the proposed scheme on Nexus smartphones. On the Nexus 5, the proposed solution reduced the energy of the AOSP default launcher, Instagram, and Pinterest by 40, 35.4, and 39.6 percent, respectively. Furthermore, the experimental results with a general usage scenario showed that our scheme prevented about 35 percent of redundant frame generation with a false-positive rate of 1.8 percent. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|