Design and Implementation of The Metadata Modification Concept Minimizing File Modification

Yoo, Yong Keun; Sopharath, Sun; Woo, Yunhee; Kim, Jin; Ko, Young Woong

doi:10.1109/tencon.2018.8650123

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…Y. Yoo et al [29] suggested a remove operation for the middle parts of a file by manipulating an i-node. When removing the middle parts of a file in conventional file systems, the remaining data after the removal should be read and written back as a new file.…”

Section: B Related Workmentioning

confidence: 99%

AvaTar: Zero-Copy Archiving With New Kernel-Level Operations

2020

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The problem associated with current file archiving systems is a slow processing time owing to unnecessary data copying. To address this problem, a novel archiving system with zero-copy merging and splitting operations, referred to as AvaTar, is presented herein. For the operations, instead of copying the data, the block allocation information of the files is manipulated at the kernel level. We implemented kernel-level archiving primitives in a Linux kernel, called AvaTar-FS, and a user-level archiving tool, called AvaTar agent. Our evaluation results indicated that AvaTar required only 0.48 s to extract 1,024 files from a 4 GB archive file, which is 132-times faster when compared with traditional GNU Tar archiving. AvaTar affords practical benefits in uploading files to a real-world cloud storage system, and successfully completes the transfer of 1,024 files to Amazon Web Service cloud storage within 60.55% of the processing time required through a traditional approach. INDEX TERMS Merging and splitting, archiving and extraction, zero-copy, file system, cloud storage system.

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Section: B Related Workmentioning

confidence: 99%