https://scholars.lib.ntu.edu.tw/handle/123456789/115208
標題: | HotSpot Cache: Saving I-Cache Energy with Dynamic Program Hot Spot Detection for Multimedia Applications | 作者: | Yang, Chia-Lin Lee, Chien-Hao |
出版社: | 臺北市:國立臺灣大學資訊工程學系 | 摘要: | Power consumption is an important design issue of current embedded systems. It has been shown that instruction cache accounts for a signicant portion of the power dissipation of the whole chip. Several studies have proposed to add a cache (L0 cache) that is very small relative to the conventional L1 cache on chip for power optimization since a smaller cache has lower load capacitance. However, energy savings often come at the cost of performance degradation. In this paper, we propose a mech- anism that detects program hot spots dynamically & stores only hot spots in the L0 cache. The optimization goal is to achieve high L0 cache utilization without sacricing performance. We design a run-time hot-spot detection mechanism around the Branch Target Buer. The results show up to 57 % energy reduction without performance degradation for a set of multimedia applications. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/2006092712285075764 | 其他識別: | 2006092712285075764 |
顯示於: | 資訊工程學系 |
檔案 | 描述 | 大小 | 格式 | |
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hotspot.pdf | 1.76 MB | Adobe PDF | 檢視/開啟 |
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