Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | ACM Digital Library |
|---|---|
| Author | Ding, Ning Hu, Y. Charlie |
| Abstract | Graphics is one of the major energy drain sources in smartphone apps. To optimize the app graphics energy, however, developers face the challenge of highly complex graphics rendering process, which involves multiple system layers including the app, the framework, the GPU, and the asynchronous interactions among them. Current diagnostic tools can profile the resource usage from certain layers, but fall short in stitching together profiling information across all the layers which is needed to provide developers with the visual effect-energy tradeoff at the app source-code level. In this paper, we design and implement a holistic graphics energy diagnosis tool, GfxDoctor1, that helps developers to systematically diagnose energy inefficiencies in app graphics at the app source-code level, by precisely quantifying (1) the visual effect of each UI update, and (2) the aggregate energy drain spent in traversing the entire frame rendering stack due to each UI update. GfxDoctor overcomes three challenges faced in deriving per-UI-update visual effect and energy accounting, asynchrony across system layers, UI update batching, and "black-box" GPU, with two key techniques -- lightweight view-frame-ID-based information flow tracking, and OpenGL record-and-replay plus frame diffing. We show the effectiveness of GfxDoctor by profiling a randomly sampled set of 30 popular Android apps which reveals three types of graphics energy bugs happening in 8 out of the 30 apps. Removing these bugs reduces the app energy drain by 46% to 90%. |
| Starting Page | 359 |
| Ending Page | 373 |
| Page Count | 15 |
| File Format | |
| ISBN | 9781450349383 |
| DOI | 10.1145/3064176.3064206 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2017-04-23 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|