| 面向能耗优化的自适应可重构指令Cache |
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| 引用本文： | 凌明,武建平,张阳,梅晨,翟婷婷. 面向能耗优化的自适应可重构指令Cache[J]. 微电子学, 2012, 42(1): 102-106,129 |
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| 作者姓名： | 凌明 武建平 张阳 梅晨 翟婷婷 |
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| 作者单位： | 东南大学国家专用集成电路系统工程技术研究中心,南京,210096 |
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| 基金项目： | "青蓝工程"资助项目 |
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| 摘 要： | 可重构Cache架构可根据程序的存储资源需求自动调整Cache结构,对系统能耗优化具有重要意义。设计了一种容量和组关联度可重构的指令Cache架构以及与之对应的高效自适应可重构算法。通过选取MiBench和MediaBench中的8个测试例程进行测试验证,提出的自适应可重构Cache与16kB四路组关联配置固定的指令Cache相比,在性能平均仅下降0.34%的情况下,系统总能耗平均降低10.51%。
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| 关 键 词： | 指令高速缓存 可重构 自适应算法 |
Energy-Oriented Adaptive Reconfigurable Instruction Cache |
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| LING Ming , WU Jianping , ZHANG Yang , MEI Chen , ZHAI Tingting. Energy-Oriented Adaptive Reconfigurable Instruction Cache[J]. Microelectronics, 2012, 42(1): 102-106,129 |
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| Authors: | LING Ming WU Jianping ZHANG Yang MEI Chen ZHAI Tingting |
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| Affiliation: | (The National ASIC Systems Engineering Technology Research Center,Southeast University,Nanjing 210096,P.R.China) |
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| Abstract: | Reconfigurable cache,which can be configured dynamically to adapt itself to changes in program characteristics,has tremendous benefits for performance and energy.A reconfigurable instruction cache,whose capacity and associativity can be tuned according to the needs of each program phase,was designed to save energy,and an effective adaptive reconfigurable algorithm was proposed to detect phase changes and select a suitable configuration.Experiment results showed that the reconfigurable cache had an averaged 10.51% total energy reduction with only 0.34% performance degradation on average,compared with 16 kB 4-way set-associative instruction cache. |
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| Keywords: | Instruction cache Reconfigurable Adaptive algorithm |
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