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 CPU缓存项目有没有数学模型？ |
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CPU缓存项目有没有数学模型？ -- 大侠士 - (158 Byte) 2010-10-20 周三, 19:56 (1190 reads) |
BWolfe_2001
警告次数: 1
头衔: 海归准将
声望: 博导
性别:  年龄: 46
加入时间: 2009/01/15
文章: 1222
来自: 堪培拉
海归分: 101100
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作者：BWolfe_2001 在 海归商务 发贴, 来自【海归网】 http://www.haiguinet.com
United States Patent 7,783,836
Wang August 24, 2010
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System and method for cache management
Abstract
Aspects of the invention relate to improvements to the Least Recently Used (LRU) cache replacement method. Weighted LRU (WLRU) and Compact Weighted LRU (CWLRU) are CPU cache replacement methods that have superior hit rates to LRU replacement for programs with poor locality, such as network protocols and applications. WLRU assigns weights to cache lines and makes replacement decision by comparing weights. When a cache line is first brought into the cache, it is assigned an initial weight. Weights of cache lines in WLRU increase when hit and decrease when not hit. Weights in WLRU also have upper limits, and the weight of a cache line never increases beyond the upper limit. CWLRU is a more space-efficient implementation of WLRU. Compared to WLRU, CWLRU uses fewer bits per cache line to store the weight.
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Inventors: Wang; Qufei (London, ON, CA)
Assignee: Wang; Qufei (Toronto, CA)
Appl. No.: 11/611,670
Filed: December 15, 2006
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60750781 Dec., 2005
作者：BWolfe_2001 在 海归商务 发贴, 来自【海归网】 http://www.haiguinet.com
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 CPU缓存项目有没有数学模型？ -- 大侠士 - (158 Byte) 2010-10-20 周三, 19:56 (1190 reads) - United States Patent 7,783,836, Wang, August 24, 2010 -- BWolfe_2001 - (1524 Byte) 2010-10-21 周四, 01:47 (451 reads)
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