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- W2968738467 abstract "Full-path-indexed file systems use a key-value database to store the full path names of files and their metadata. With this pattern, the I/O efficiency can be improved because data is placed on persistent storage in scan order. However, it introduces intolerable overhead on renaming a directory because of the modification on the full path names of files under that directory. In this paper, we introduce prefix replacement mechanism on B+-tree to accelerate renaming directories on full-path-indexed file systems. It consists of three steps: pre-scan prefix deletion, key replacement and floating-split bulk insertion. Unnecessary searches and compares are reduced in these mechanisms. We use Kyoto Cabinet as the key-value database, and implement prefix replacement mechanism on it. We run tests on two benchmarks, the first is generated by Mdtest [18], and the second is the source code of Linux [19]. Compared with LocoFS [4], one kind of full-path-indexed file system, our design is about 5(times ) faster to rename large directories, and the performance is basically same on small directories." @default.
- W2968738467 created "2019-08-22" @default.
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- W2968738467 date "2019-01-01" @default.
- W2968738467 modified "2023-10-06" @default.
- W2968738467 title "Reducing Rename Overhead in Full-Path-Indexed File System" @default.
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- W2968738467 doi "https://doi.org/10.1007/978-3-030-29611-7_4" @default.
- W2968738467 hasPublicationYear "2019" @default.
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