Lowering the Number of Live-Page Copies on Solid State Drives through Trim-Assisted Space Allocation

Yong Cheng Liaw*, Shuo Han Chen, Hsin Yun Su

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

Due to the inherent limitations of solid state drives (SSDs), the garbage collection policy is a performance-critical design within the flash translation layer (FTL), designed to manage the internal limitations of SSDs and emulate the functionalities of conventional storage devices. To assist garbage collection, the concept of trim command has been designed and deployed by marking storage space as invalid and reducing the number of live-page copies during garbage collection. Nevertheless, conventional approaches usually utilize trim information during garbage collection, and the possibility of utilizing trim information during data allocation receives much less attention. Such an observation motivates this paper to propose a trim-assisted space allocation mechanism to lower the number of live-page copies from the source where the invalid space is produced. The experiments show promising results.

原文English
主出版物標題Proceedings - International SoC Design Conference 2023, ISOCC 2023
發行者Institute of Electrical and Electronics Engineers Inc.
頁面239-240
頁數2
ISBN(電子)9798350327038
DOIs
出版狀態Published - 2023
事件20th International SoC Design Conference, ISOCC 2023 - Jeju, 韓國
持續時間: 25 10月 202328 10月 2023

出版系列

名字Proceedings - International SoC Design Conference 2023, ISOCC 2023

Conference

Conference20th International SoC Design Conference, ISOCC 2023
國家/地區韓國
城市Jeju
期間25/10/2328/10/23

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