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Computers, Volume 13, Issue 11
November 2024 - 31 articles
Cover Story: The performance of SSDs can be degraded depending on the I/O access pattern due to the unique characteristics of SSDs. This paper presents an address reshaping scheme in a virtual file system (VFS) called sVFS to improve performance and make deployment easy. To do this, sVFS first sequentializes a random access pattern in the VFS layer, which is an abstract layer on top of a more concrete file system. Thus, sVFS is independent and easily deployed on any concrete file systems, block layer configuration (e.g., RAID), and devices. Second, sVFS adopts a mapping table for managing sequentialized addresses, guaranteeing correct read operations. Third, it supports transaction processing for updating the mapping table to avoid sacrificing consistency. View this paper
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Computers - ISSN 2073-431X