GALRU: A Group-Aware Buffer Management Scheme for Flash Storage Systems
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwak, Jaewook | - |
dc.contributor.author | Lee, Jungkeol | - |
dc.contributor.author | Lee, Daeyong | - |
dc.contributor.author | Jeong, Joonyong | - |
dc.contributor.author | Lee, Gyeongyong | - |
dc.contributor.author | Choi, Jungwook | - |
dc.contributor.author | Song, Yong Ho | - |
dc.date.accessioned | 2021-08-02T07:30:58Z | - |
dc.date.available | 2021-08-02T07:30:58Z | - |
dc.date.created | 2021-05-11 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/7920 | - |
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. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | GALRU: A Group-Aware Buffer Management Scheme for Flash Storage Systems | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Jungwook | - |
dc.contributor.affiliatedAuthor | Song, Yong Ho | - |
dc.identifier.doi | 10.1109/ACCESS.2020.3030089 | - |
dc.identifier.scopusid | 2-s2.0-85102846718 | - |
dc.identifier.wosid | 000583566400001 | - |
dc.identifier.bibliographicCitation | IEEE ACCESS, v.8, pp.185360 - 185372 | - |
dc.relation.isPartOf | IEEE ACCESS | - |
dc.citation.title | IEEE ACCESS | - |
dc.citation.volume | 8 | - |
dc.citation.startPage | 185360 | - |
dc.citation.endPage | 185372 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Computer Science | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.subject.keywordPlus | EXPLOITING INTERNAL PARALLELISM | - |
dc.subject.keywordPlus | PAGE REPLACEMENT ALGORITHM | - |
dc.subject.keywordPlus | MEMORY | - |
dc.subject.keywordPlus | LRU | - |
dc.subject.keywordPlus | ARCHITECTURE | - |
dc.subject.keywordPlus | CONTROLLER | - |
dc.subject.keywordAuthor | Buffer management | - |
dc.subject.keywordAuthor | flash memory | - |
dc.subject.keywordAuthor | flash translation layer | - |
dc.subject.keywordAuthor | flash storage system | - |
dc.identifier.url | https://ieeexplore.ieee.org/document/9220140 | - |
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