Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones
One of the major sources of power drain in smartphones is a frame rendering and display process called graphics pipeline, in which power consumption depends largely on frame rendering operations per second (fps), known as the frame rate, and the quantity of UI content to be rendered. We discovered a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/10/17/2177 |
| _version_ | 1797521506091139072 |
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| author | Woo-Hyun Ahn Chang-Kyung Hong Kyung-Min Han Seong-Hun Choi Jae-Won Oh Seung-Ho Lim |
| author_facet | Woo-Hyun Ahn Chang-Kyung Hong Kyung-Min Han Seong-Hun Choi Jae-Won Oh Seung-Ho Lim |
| author_sort | Woo-Hyun Ahn |
| collection | DOAJ |
| description | One of the major sources of power drain in smartphones is a frame rendering and display process called graphics pipeline, in which power consumption depends largely on frame rendering operations per second (fps), known as the frame rate, and the quantity of UI content to be rendered. We discovered a major problem causing power consumption upon a scrolling operation: The Android graphics pipeline renders all or a large portion of the content displayed most recently at a frame rate of nearly 60 fps. This paper proposes a scrolling-aware rendering (SCAR) scheme to reduce the frame rate caused by a scrolling. When rendering a frame for UI content to be displayed, SCAR pre-renders UI content that is likely to be displayed soon in any subsequent scrolling operation. This frame is extended to place the pre-rendered UI content contiguously with the UI content to be displayed. Upon a subsequent scrolling, SCAR repositions the extended frame on screen by a scrolling distance instead of rendering a new frame. Our experiments on a smartphone show that SCAR reduced frame rates to below one fps in scrolling, thus saving power by up to 30%. |
| first_indexed | 2024-03-10T08:13:27Z |
| format | Article |
| id | doaj.art-37f1f3607ee243408ba1a51504b91fef |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T08:13:27Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-37f1f3607ee243408ba1a51504b91fef2023-11-22T10:31:03ZengMDPI AGElectronics2079-92922021-09-011017217710.3390/electronics10172177Scrolling-Aware Rendering to Reduce Frame Rates on SmartphonesWoo-Hyun Ahn0Chang-Kyung Hong1Kyung-Min Han2Seong-Hun Choi3Jae-Won Oh4Seung-Ho Lim5School of Software, Kwangwoon University, Seoul 01897, KoreaSchool of Software, Kwangwoon University, Seoul 01897, KoreaSchool of Software, Kwangwoon University, Seoul 01897, KoreaSchool of Software, Kwangwoon University, Seoul 01897, KoreaSchool of Computer Science and Information Engineering, The Catholic University of Korea, Bucheon-si 1466, KoreaDivision of Computer Engineering, Hankuk University of Foreign Studies, Yongin-si 17035, KoreaOne of the major sources of power drain in smartphones is a frame rendering and display process called graphics pipeline, in which power consumption depends largely on frame rendering operations per second (fps), known as the frame rate, and the quantity of UI content to be rendered. We discovered a major problem causing power consumption upon a scrolling operation: The Android graphics pipeline renders all or a large portion of the content displayed most recently at a frame rate of nearly 60 fps. This paper proposes a scrolling-aware rendering (SCAR) scheme to reduce the frame rate caused by a scrolling. When rendering a frame for UI content to be displayed, SCAR pre-renders UI content that is likely to be displayed soon in any subsequent scrolling operation. This frame is extended to place the pre-rendered UI content contiguously with the UI content to be displayed. Upon a subsequent scrolling, SCAR repositions the extended frame on screen by a scrolling distance instead of rendering a new frame. Our experiments on a smartphone show that SCAR reduced frame rates to below one fps in scrolling, thus saving power by up to 30%.https://www.mdpi.com/2079-9292/10/17/2177android operating systemandroid graphics pipelinesmartphonepower consumptionframe rateframe rendering |
| spellingShingle | Woo-Hyun Ahn Chang-Kyung Hong Kyung-Min Han Seong-Hun Choi Jae-Won Oh Seung-Ho Lim Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones Electronics android operating system android graphics pipeline smartphone power consumption frame rate frame rendering |
| title | Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones |
| title_full | Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones |
| title_fullStr | Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones |
| title_full_unstemmed | Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones |
| title_short | Scrolling-Aware Rendering to Reduce Frame Rates on Smartphones |
| title_sort | scrolling aware rendering to reduce frame rates on smartphones |
| topic | android operating system android graphics pipeline smartphone power consumption frame rate frame rendering |
| url | https://www.mdpi.com/2079-9292/10/17/2177 |
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