查询结果:   薛镭.基于NAND Flash存储器的磨损均衡DP算法优化[J].计算机应用与软件,2019,36(6):282 - 286.
中文标题
基于NAND Flash存储器的磨损均衡DP算法优化
发表栏目
算法
摘要点击数
183
英文标题
OPTIMIZATION OF WEAR EQUALIZATION DP ALGORITHM BASED ON NAND FLASH MEMORIZER
作 者
薛镭 Xue Lei
作者单位
中国船舶重工集团公司第七一五研究所 浙江 杭州 310023     
英文单位
715 Research Institute, China Shipbuilding Heavy Industry Group Corporation, Hangzhou 310023, Zhejiang, China     
关键词
双池算法 磨损均衡 页复制操作 优先搜索树
Keywords
Dual pool algorithm Wear equalization Page replication operation Priority search tree(PST)
基金项目
作者资料
薛镭,工程师,主研领域:嵌入式系统,电子信息。 。
文章摘要
双池DP(Dual Pool)算法对于NAND Flash的磨损均衡控制水平较高,但是磨损均衡过程较长,磨损均衡分布不均,第一个磨穿块容易较早出现。为了解决这些不足之处,在吸收双池算法磨损控制思想的基础上,提出一种基于优先搜索树(PST)的磨损均衡思想,在块搜索策略和垃圾回收策略等方面进行优化。实验结果表明,算法继承了磨损均衡控制水平较高的优点,磨损均衡过程相比双池算法降低70%,系统资源利用率降低40%,NAND Flash使用寿命提高了30%。
Abstract
Dual Pool(DP) algorithm has a high level of wear balance control for NAND Flash, but the wear balance process is long, the wear balance distribution is uneven, and the first wear block is easy to appear early. In order to solve these shortcomings, based on the wear control idea of dual pool algorithm, I proposed a wear balance idea based on priority search tree(PST) to optimize in block search strategy and garbage collection strategy. The experimental results indicate that the algorithm could inherit the advantages of high wear balance control level. Compared with the dual-pool algorithm, the wear balance process reduces by 70%, the utilization rate of system resources reduces by 40%, and the service life of NAND Flash increases by 30%.
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作者1
发表栏目
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摘要
1
基于NAND Flash存储器的磨损均衡DP算法优化
薛镭
算法
2019
6
282
[摘要]