An L1 Cache Design Space Exploration System for Embedded Applications
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概要
- 論文の詳細を見る
In an embedded system where a single application or a class of applications is repeatedly executed on a processor, its cache configuration can be customized such that an optimal one is achieved. We can have an optimal cache configuration which minimizes overall memory access time by varying the three cache parameters: the number of sets, a line size, and an associativity. In this paper, we first propose two cache simulation algorithms: CRCB1 and CRCB2, based on Cache Inclusion Property. They realize exact cache simulation but decrease the number of cache hit/miss judgments dramatically. We further propose three more cache design space exploration algorithms: CRMF1, CRMF2, and CRMF3, based on our experimental observations. They can find an almost optimal cache configuration from the viewpoint of access time. By using our approach, the number of cache hit/miss judgments required for optimizing cache configurations is reduced to 1/10-1/50 compared to conventional approaches. As a result, our proposed approach totally runs an average of 3.2 times faster and a maximum of 5.3 times faster compared to the fastest approach proposed so far. Our proposed cache simulation approach achieves the world fastest cache design space exploration when optimizing total memory access time.
- 2009-06-01
著者
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Yanagisawa Masao
Department Of Internal Medicine Division Of Cardiology Nippon Medical School Tama-nagayama Hosipital
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Ohtsuki T
Tokyo Univ. Sci. Noda‐shi Jpn
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TOGAWA Nozomu
Department of Computer Science, Waseda University
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Ohtsuki Tatsuo
Department of Computer Science and Engineering, Waseda University
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Togawa N
Univ. Kitakyushu Kitakyushu‐shi Jpn
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Togawa Nozomu
The Dept. Of Computer Science Waseda University
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Togawa Nozomu
Dept. Of Computer Science Waseda University
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Yanagisawa M
The Dept. Of Computer Science Waseda University
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Yanagisawa Masao
Department Of Computer Science Waseda University
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Ohtsuki Tatsuo
Department Of Computer Science And Engineering Waseda University
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Ohtsuki T
Waseda Univ. Tokyo Jpn
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Ohtsuki Tomoaki
The Department Of Electrical Engineering Science University Of Tokyo
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Ohtsuki T
Department Of Electrical Engineering Tokyo University Of Science
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Yanagisawa Masao
Department Of Cardiology Tama-nagayama Hospital Nippon Medical School
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TOJO Nobuaki
Department of Computer Science and Engineering, Waseda University
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Togawa Nozomu
Department Of Computer Science And Engineering Waseda University
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Tojo Nobuaki
Department Of Computer Science And Engineering Waseda University
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Yanagisawa Masao
Department Of Cardiology Nippon Medical School
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Masao Yanagisawa
School of Fundamental Science and Engineering Waseda University
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