The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
이 편지에서 우리는 RbWL(Ricency-based Wear Leveling)이라는 정적 마모 레벨링 기술을 제안합니다. RbWL의 기본 아이디어는 정적 마모 레벨링에 의한 콜드 데이터의 빈번한 마이그레이션이 NAND 플래시 메모리 시스템에 상당한 오버헤드를 발생시키기 때문에 최소한의 수준에서 정적 마모 레벨링을 실행하는 것입니다. RbWL은 핫/콜드 블록의 수명 차이와 NAND 플래시 메모리 시스템의 전체 수명을 반영하는 임계값에 따라 실행 빈도를 조정합니다. 평가 결과, RbWL은 NAND 플래시 메모리 시스템의 수명을 52% 향상시키고, 삭제 횟수 및 삭제 횟수 측면에서 웨어 레벨링 오버헤드를 8%에서 42%, 13%에서 51%로 줄이는 것으로 나타났습니다. 다른 알고리즘과 비교한 유효한 페이지의 페이지 마이그레이션 수입니다.
Sang-Ho HWANG
DGIST (Daegu Gyeongbuk Institute of Science and Technology)
Jong Wook KWAK
Yeungnam University
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
부
Sang-Ho HWANG, Jong Wook KWAK, "RbWL: Recency-Based Static Wear Leveling for Lifetime Extension and Overhead Reduction in NAND Flash Memory Systems" in IEICE TRANSACTIONS on Information,
vol. E101-D, no. 10, pp. 2518-2522, October 2018, doi: 10.1587/transinf.2018EDL8076.
Abstract: In this letter, we propose a static wear leveling technique, called Recency-based Wear Leveling (RbWL). The basic idea of RbWL is to execute static wear leveling at minimum levels, because the frequent migrations of cold data by static wear leveling cause significant overhead in a NAND flash memory system. RbWL adjusts the execution frequency according to a threshold value that reflects the lifetime difference of the hot/cold blocks and the total lifetime of the NAND flash memory system. The evaluation results show that RbWL improves the lifetime of NAND flash memory systems by 52%, and it also reduces the overhead of wear leveling from 8% to 42% and from 13% to 51%, in terms of the number of erase operations and the number of page migrations of valid pages, respectively, compared with other algorithms.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2018EDL8076/_p
부
@ARTICLE{e101-d_10_2518,
author={Sang-Ho HWANG, Jong Wook KWAK, },
journal={IEICE TRANSACTIONS on Information},
title={RbWL: Recency-Based Static Wear Leveling for Lifetime Extension and Overhead Reduction in NAND Flash Memory Systems},
year={2018},
volume={E101-D},
number={10},
pages={2518-2522},
abstract={In this letter, we propose a static wear leveling technique, called Recency-based Wear Leveling (RbWL). The basic idea of RbWL is to execute static wear leveling at minimum levels, because the frequent migrations of cold data by static wear leveling cause significant overhead in a NAND flash memory system. RbWL adjusts the execution frequency according to a threshold value that reflects the lifetime difference of the hot/cold blocks and the total lifetime of the NAND flash memory system. The evaluation results show that RbWL improves the lifetime of NAND flash memory systems by 52%, and it also reduces the overhead of wear leveling from 8% to 42% and from 13% to 51%, in terms of the number of erase operations and the number of page migrations of valid pages, respectively, compared with other algorithms.},
keywords={},
doi={10.1587/transinf.2018EDL8076},
ISSN={1745-1361},
month={October},}
부
TY - JOUR
TI - RbWL: Recency-Based Static Wear Leveling for Lifetime Extension and Overhead Reduction in NAND Flash Memory Systems
T2 - IEICE TRANSACTIONS on Information
SP - 2518
EP - 2522
AU - Sang-Ho HWANG
AU - Jong Wook KWAK
PY - 2018
DO - 10.1587/transinf.2018EDL8076
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E101-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2018
AB - In this letter, we propose a static wear leveling technique, called Recency-based Wear Leveling (RbWL). The basic idea of RbWL is to execute static wear leveling at minimum levels, because the frequent migrations of cold data by static wear leveling cause significant overhead in a NAND flash memory system. RbWL adjusts the execution frequency according to a threshold value that reflects the lifetime difference of the hot/cold blocks and the total lifetime of the NAND flash memory system. The evaluation results show that RbWL improves the lifetime of NAND flash memory systems by 52%, and it also reduces the overhead of wear leveling from 8% to 42% and from 13% to 51%, in terms of the number of erase operations and the number of page migrations of valid pages, respectively, compared with other algorithms.
ER -