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SAC: A Stream AwareWrite Cache Scheme for Multi-Streamed Solid State Drives

  • East China Normal University
  • City University of Hong Kong
  • Huazhong University of Science and Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This work found that the state-of-the-art multi-streamed SSDs are inefficiently used due to two issues. First, the write cache inside SSDs is not aware of data from different streams, which induce conflict among streams. Second, the current stream identification methods are not accurate, which should be optimized inside SSDs. This work proposed a novel write cache scheme to efficiently utilize and optimize the multiple streams. First, an inter-stream aware cache partitioning scheme is proposed to manage the data from different streams. Second, an intra-stream based active cache evicting scheme is proposed to evict data to block with more invalid pages in priority. Experiment results show that the proposed scheme significantly reduces the write amplification (WAF) of multi-streamed SSDs by up to 28% with negligible cost.

源语言英语
主期刊名Proceedings of the 26th Asia and South Pacific Design Automation Conference, ASP-DAC 2021
出版商Institute of Electrical and Electronics Engineers Inc.
645-650
页数6
ISBN(电子版)9781450379991
DOI
出版状态已出版 - 18 1月 2021
活动26th Asia and South Pacific Design Automation Conference, ASP-DAC 2021 - Virtual, Online, 日本
期限: 18 1月 202121 1月 2021

出版系列

姓名Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC

会议

会议26th Asia and South Pacific Design Automation Conference, ASP-DAC 2021
国家/地区日本
Virtual, Online
时期18/01/2121/01/21

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