公开(公告)号：KR1020140006299A

公开(公告)日：2014-01-16

申请号：KR1020120072083

申请日：2012-07-03

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 민창우 ,  조현진 ,  김강년 ,  엄영익 ,  이상원

IPC: G06F3/06 ,  G06F12/00 ,  G11C16/02

CPC classification number: G06F12/0246

Abstract: The present invention provides a method and an apparatus for controlling writing data in a storage unit based on a NAND flash memory for improving lift time and the performance of random writing which is an important problem in the storage unit based on the NAND flash memory. The present invention relates to a method for controlling writing data including the NAND flash memory comprising: a step of determining reference values in each group for classifying dirty pages written in the storage unit with a plurality of groups; a step of calculating hotness indicating the conversion availability of data for each dirty page; a step of classifying the dirty pages into groups corresponding to the reference value which is close to the calculated hotness; a step of determining that the size of each group is larger than the size of a segment as unit which requests writing to the storage unit; and a step of requesting the writing with the unit of the segment for a larger size group and the same size group. [Reference numerals] (310) Writing request?; (320) Determining reference values in each group; (330) Hotness calculation; (340) Classifying dirty pages into each group according to reference values in each group; (350) Is it lager than a segment?; (360) Executing writing operation with a segment unit; (AA) START; (BB,DD) NO; (CC,EE) YES; (FF) END

Abstract translation: 本发明提供了一种用于基于NAND闪存控制在存储单元中写入数据的方法和装置，用于改善提升时间和基于NAND闪存的存储单元中的重要问题的随机写入的性能。 本发明涉及一种用于控制包括NAND闪速存储器的写入数据的方法，该方法包括：确定每组中的参考值的步骤，用多个组对存储单元中写入的脏页进行分类; 计算指示每个脏页面的数据的转换可用性的热度的步骤; 将脏页面分类为与接近计算的热度的参考值相对应的组的步骤; 确定每个组的大小大于作为请求向存储单元写入的单元的段的大小的步骤; 以及使用该段的单位请求用于较大尺寸组和相同尺寸组的步骤。 （附图标记）（310）写入请求 （320）确定每组中的参考值; （330）热度计算; （340）根据每组中的参考值将脏页分类到每个组中; （350）是比一个细节还要贵吗？ （360）用段单元执行写入操作; （AA）开始; （BB，DD）NO; （CC，EE）YES; （FF）END