https://scholars.lib.ntu.edu.tw/handle/123456789/314768
標題: | Software-controlled cache architecture for energy efficiency | 作者: | Yang, Chia-Lin Tseng, Hung-Wei Ho, Chia-Chiang Wu, Ja-Ling JA-LING WU |
關鍵字: | Dynamic power dissipation; Energy consumption; MPEG-2; Multimedia applications; Software-controlled cache | 公開日期: | 2005 | 卷: | 15 | 期: | 5 | 起(迄)頁: | 634-644 | 來源出版物: | IEEE Transactions on Circuits and Systems for Video Technology | 摘要: | Power consumption is an important design issue of current multimedia embedded systems. Data caches consume a significant portion of total processor power for multimedia applications because they are data intensive. In an integrated multimedia system, the cache architecture cannot be tuned specifically for an application. Therefore, a significant amount of cache energy is actually wasted. In this paper, we propose the software-controlled cache architecture that improves the energy efficiency of the shared cache in an integrated multimedia system on an application-specific base. Data types in an application are allocated to different cache regions. On each access, only the allocated cache regions need to be activated. We test the effectiveness of the software-controlled cache of the MPEG-2 software decoder. The results show up to 40% of cache energy reduction on an ARM-like cache architecture without sacrificing performance. © 2005 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-18844431406&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/314768 |
DOI: | 10.1109/TCSVT.2005.846444 | SDG/關鍵字: | Cache memory; Computer software; Decoding; Energy efficiency; Energy utilization; Image quality; Multimedia systems; Optimization; Cache energy; Dynamic power dissipation; MPEG-2 software decoder; Multimedia applications; Software-controlled cache; Embedded systems |
顯示於: | 資訊工程學系 |
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