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http://dx.doi.org/10.3745/KIPSTA.2009.16-A.2.89

A Fast Writing Technique of Large-sized Edited Multimedia Files based on the Ext3 File System  

Jung, Seung-Wan (경북대학교 전자전기컴퓨터학부)
Nam, Young-Jin (대구대학교 컴퓨터IT공학부)
Seo, Dae-Wha (경북대학교 전자전기컴퓨터학부)
Publication Information
The KIPS Transactions:PartA / v.16A, no.2, 2009 , pp. 89-100 More about this Journal
Abstract
With the advance in digital technologies and the increasing prevalence of high quality multimedia contents, there is a growing user demand for multimedia devices, such as mobile phones, digital TV, PMP, digital camcoders, digital cameras. Such devices provide various services associated with multimedia file manipulation, including multimedia contents playback, multimedia file editing, etc. Conventional file systems exhibit a performance-related drawback that requires considerable amount of time and disk I/Os in order to store large-sized edited multimedia files. This paper proposes a fast, efficient writing technique for large-sized edited multimedia files by using data block sharing with adjustment of inode block pointers. Our experiments show that the proposed scheme not only improves write performance of the Ext3 file system on average by 16 times with various types of edited multimedia files, but also reduces consumed disk space dramatically through the data block sharing.
Keywords
File Editing; Multimedia File; Data Block Sharing;
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