Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송용호 | - |
dc.date.accessioned | 2022-07-29T01:09:55Z | - |
dc.date.available | 2022-07-29T01:09:55Z | - |
dc.date.issued | 2020-10 | - |
dc.identifier.citation | IEEE ACCESS, v. 8, page. 185360-185372 | en_US |
dc.identifier.issn | 2169-3536 | - |
dc.identifier.uri | https://ieeexplore.ieee.org/document/9220140 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/171922 | - |
dc.description.abstract | Many flash storage systems divide input/output (I/O) requests that require large amounts of data into sub-requests to exploit their internal parallelism. In this case, an I/O request can be completed only after all sub-requests have been completed. Thus, non-critical sub-requests that are completed quickly do not affect I/O latency. To efficiently reduce I/O latency, we propose a buffer management scheme that allocates buffer space by considering the relationship between the processing time of the sub-request and I/O latency. The proposed scheme prevents non-critical sub-requests from wasting ready-to-use buffer space by avoiding the situation in which buffer spaces that are and are not ready to use are allocated to an I/O request. To allocate the same type of buffer space to an I/O request, the proposed scheme first groups sub-requests derived from the same I/O request and then applies a policy for allocating buffer space in units of sub-request groups. When the ready-to-use buffer space is insufficient to be allocated to the sub-request group being processed at a given time, the proposed scheme does not allocate it to the sub-request group but it instead sets it aside for future I/O requests. The results of the experiments to test the proposed scheme show that it can reduce I/O latency by up to 24% compared with prevalent buffer management schemes. | en_US |
dc.description.sponsorship | This work was supported by the Ministry of Trade, Industry and Energy/Korea Institute for Industrial Economics and Trade (MOTIE/KEIT) through the Research and Development Program (Developing Processor-Memory-Storage Integrated Architecture for Low-Power, High-Performance Big Data Servers) under Grant 10077609. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | en_US |
dc.subject | Buffer management | en_US |
dc.subject | flash memory | en_US |
dc.subject | flash translation layer | en_US |
dc.subject | flash storage system | en_US |
dc.title | GALRU: A Group-aware Buffer Management Scheme for Flash Storage Systems | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/ACCESS.2020.3030089 | - |
dc.relation.page | 15-35 | - |
dc.relation.journal | IEEE ACCESS | - |
dc.contributor.googleauthor | Kwak, Jaewook | - |
dc.contributor.googleauthor | Lee, Jungkeol | - |
dc.contributor.googleauthor | Lee, Daeyong | - |
dc.contributor.googleauthor | Jeong, Joonyong | - |
dc.contributor.googleauthor | Lee, Gyeongyong | - |
dc.contributor.googleauthor | Choi, Jungwook | - |
dc.contributor.googleauthor | Song, Yong Ho | - |
dc.relation.code | 2020045465 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF ELECTRONIC ENGINEERING | - |
dc.identifier.pid | yhsong | - |
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