TY - GEN
T1 - Rethinking I/O request management over eMMC-based solid-state drives
AU - Tsao, Che Wei
AU - Liu, Chun Yi
AU - Ho, Chien Chung
AU - Wang, Tse Yuan
AU - Huang, Po Chun
AU - Chang, Yuan Hao
AU - Kuo, Tei Wei
N1 - Publisher Copyright:
© 2015 ACM.
PY - 2015/10/9
Y1 - 2015/10/9
N2 - Due to its popularity and competitive prices, the embedded multimedia card (eMMC) has become a popular choice to replace raw flash chips in the design of solid-state drives (SSDs). However, an eMMC-based SSD often encounters its worst-case performance on random accesses. To address such a performance problem, this paper proposes an eMMC-aware strategy to exploit the characteristics of eMMC and access features of file systems, so as to effectively separate hot/cold data and repack data of I/O requests to improve the write performance of eMMC-based SSDs. According to the experiment results obtained, the proposed strategy can significantly improve random write performance, compared to prior works.
AB - Due to its popularity and competitive prices, the embedded multimedia card (eMMC) has become a popular choice to replace raw flash chips in the design of solid-state drives (SSDs). However, an eMMC-based SSD often encounters its worst-case performance on random accesses. To address such a performance problem, this paper proposes an eMMC-aware strategy to exploit the characteristics of eMMC and access features of file systems, so as to effectively separate hot/cold data and repack data of I/O requests to improve the write performance of eMMC-based SSDs. According to the experiment results obtained, the proposed strategy can significantly improve random write performance, compared to prior works.
UR - http://www.scopus.com/inward/record.url?scp=84960852606&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960852606&partnerID=8YFLogxK
U2 - 10.1145/2811411.2811536
DO - 10.1145/2811411.2811536
M3 - Conference contribution
AN - SCOPUS:84960852606
T3 - Proceeding of the 2015 Research in Adaptive and Convergent Systems, RACS 2015
SP - 451
EP - 456
BT - Proceeding of the 2015 Research in Adaptive and Convergent Systems, RACS 2015
PB - Association for Computing Machinery, Inc
T2 - Research in Adaptive and Convergent Systems, RACS 2015
Y2 - 9 October 2015 through 12 October 2015
ER -