NDLI: A user-centric CPU-GPU governing framework for 3D games on mobile devices

Content Provider	IEEE Xplore Digital Library
Author	Wei-Ming Chen Sheng-Wei Cheng Pi-Cheng Hsiu Tei-Wei Kuo
Copyright Year	2015
Description	Author affiliation: Res. Center for Inf. Technol. Innovation, Taipei, Taiwan (Pi-Cheng Hsiu) \|\| Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan (Wei-Ming Chen; Sheng-Wei Cheng; Tei-Wei Kuo)
Abstract	Graphics-intensive mobile games are becoming increasingly popular, but such applications place high demand on device CPUs and GPUs. The design of current mobile systems results in unnecessary energy waste due to lack of consideration of application phases and user attention (a “demand-level” gap) and because each processor administers power management autonomously (a “processor-level” gap). This paper proposes a user-centric CPU-GPU governing framework which aims to reduce energy consumption without significantly impacting the user experience. To bridge the gap at the demand level, we identify the user demand at runtime and accordingly determine appropriate governing policies for the respective processors. On the other hand, to bridge the gap at the processor level, the proposed framework interprets the frequency scaling intents of processors based on the observation of the CPU-GPU interaction and the processor status. We implemented our framework on a Samsung Galaxy S4, and conducted extensive experiments with real-world 3D gaming apps. Experimental results showed that, for an application being highly interactive and frequent phase changing, our proposed framework can reduce energy consumption by 45.1% compared with state-of-the-art policy without significantly impacting the user experience.
Starting Page	224
Ending Page	231
File Size	759037
Page Count	8
File Format	PDF
e-ISBN	9781467383882
DOI	10.1109/ICCAD.2015.7372574
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphics processing units Games Loading Rendering (computer graphics) Energy consumption Three-dimensional displays Bridges
Content Type	Text
Resource Type	Article

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