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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Institute of Information Scientists and Engineers Journal of Computing Science and Engineering Journal of Computing Science and Engineering Vol.17 No.2
- 발행연도
- 2023.6
- 수록면
- 80 - 92 (13page)
- DOI
- 10.5626/JCSE.2023.17.2.80
이용수
초록· 키워드
오류제보하기
The emerging multi-queue solid state drives (SSDs) impose two challenges on I/O scheduling in the host operating system. First, the I/O scheduler should give a scalable performance in the number of processor cores to exploit the massive parallelism within the SSD. Second, it should provide performance isolation between the cores so that each core can schedule application I/O streams with a reserved bandwidth share. To cope with these challenges, we propose a novel I/O scheduler called mqFlashFQ. In mqFlashFQ, for every core to make a scheduling decision in parallel, we use a randomization technique to decentralize the existing FlashFQ algorithm, consequently, significantly reducing the inter-core synchronization overheads. Moreover, to provide a fair bandwidth share on a per-core basis, we present an accurate calibration method that determines the cost of each I/O request in terms of its direction and size. This method is distinguished in that it enables to provide a minimum bandwidth guarantee to each core with no garbage collection. Through our experiments with non-volatile memory express (NVMe) SSD products, we demonstrate that the proposed mqFlashFQ and calibration method give a scalable performance and a fair share of the bandwidth to each core for various I/O workloads.
목차
Abstract
I. INTRODUCTION
II. PRELIMINARIES
III. PROPOSED SCHEDULER
IV. EXPERIMENTAL RESULTS
V. RELATED WORK
VI. CONCLUSION AND FUTURE WORK
REFERENCES
참고문헌 (28)
참고문헌 신청
K. Guo, W. Zhao, Y, Lei, and Y. Gong, “I/O scheduling for solid state devices in virtual machines,” in Proceedings of 2013 IEEE International Conference on Cluster Computing (CLUSTER), Indianapolis, IN, 2013, pp. 1-6.
S. Kim, D. Kang, and J. Choi, “Revisiting I/O scheduler for enhancing I/O fairness in virtualization systems,” IEICE TRANSACTIONS on Information and Systems, vol. 97, no. 12, pp. 3133-3141, 2014.
Intel, “Serial ATA Advanced Host Controller Interface (AHCI) 1.3,” 2008 [Online]. Available: https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/serial-ata-ahci-spec-rev1_3.pdf.
NVM Express Inc., “NVM Express revision 1.2 specification,” 2014 [Online]. Available: https://www.nvmexpress.org/wpcontent/uploads/NVM-Express-1_2-Gold-20141209.pdf.
H. Park, S. Yoo, C. H. Hong, and C. Yoo, “Storage SLA guarantee with novel SSD I/O scheduler in virtualized data centers,” IEEE Transactions on Parallel and Distributed Systems, vol. 27, no. 8, pp. 2422-2434, 2016.
S. Kim, D. Kang, and J. Choi, “Revisiting I/O scheduler for enhancing I/O fairness in virtualization systems,” IEICE TRANSACTIONS on Information and Systems, vol. 97, no. 12, pp. 3133-3141, 2014.
Intel, “Serial ATA Advanced Host Controller Interface (AHCI) 1.3,” 2008 [Online]. Available: https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/serial-ata-ahci-spec-rev1_3.pdf.
NVM Express Inc., “NVM Express revision 1.2 specification,” 2014 [Online]. Available: https://www.nvmexpress.org/wpcontent/uploads/NVM-Express-1_2-Gold-20141209.pdf.
H. Park, S. Yoo, C. H. Hong, and C. Yoo, “Storage SLA guarantee with novel SSD I/O scheduler in virtualized data centers,” IEEE Transactions on Parallel and Distributed Systems, vol. 27, no. 8, pp. 2422-2434, 2016.
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