Improving read performance by isolating multiple queues in NVMe SSDs
- Authors
- Lee, M.[Lee, M.]; Kang, D.H.[Kang, D.H.]; Lee, M.[Lee, M.]; Eom, Y.I.[Eom, Y.I.]
- Issue Date
- 2017
- Publisher
- Association for Computing Machinery, Inc
- Citation
- Proceedings of the 11th International Conference on Ubiquitous Information Management and Communication, IMCOM 2017
- Journal Title
- Proceedings of the 11th International Conference on Ubiquitous Information Management and Communication, IMCOM 2017
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/33605
- DOI
- 10.1145/3022227.3022262
- Abstract
- As NVMe SSDs have become viable, recent researches have focused on optimizing the performance of NVMe SSDs, which provide multiple I/O queues to maximize the I/O parallelism of flash-chip, while traditional operating systems are designed ordinarily for single queue storage, such as HDD and SATA SSD. Unfortunately, no prior works have considered the write interference while NVMe SSD still has the possibility of the interference. This interference is crucial in read-intensive environments because write requests negatively affect the latency of read requests. In this paper, we propose a novel queue isolation scheme that efficiently eliminates the write interference and improves the read performance by isolating read and write requests. Our experimental results clearly show that our scheme improves the read performance by up to 33% in heavy read workloads, compared to Baseline.
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- Appears in
Collections - Information and Communication Engineering > Department of Computer Engineering > 1. Journal Articles
- Computing and Informatics > Computer Science and Engineering > 1. Journal Articles
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