A Block Management Mechanism for Multimedia Files
Summary :
In general, multimedia files are much larger than ordinary text files because they consist of multiple monomedia. In order to process large multimedia files in real time, the file system must be able to store and access files efficiently. In th UNIX s5 file system, a multimedia file may be scattered into many disk blocks over the entire disk space, and accessing a multimedia file requires a considerable amount of time for random disk head movement. This paper proposes the internal structure of a multimedia file and its inode which is modified from UNIX s5 file system's. Also, we propose a mechanism for allocating and deallocating contiguous disk blocks for large multimedia files using the bitmap tree and compares its performance with that of the UNIX s5 file system. Our results show that the proposed mechanism reduces considerably the number of disk I/Os required to allocate and deallocate contiguous disk blocks. It also reduces the total access time for large multimedia files by approximately 95% due to the contiguous allocation of disk spaces.
- Publication
- IEICE TRANSACTIONS on Information Vol.E78-D No.11 pp.1498-1508
- Publication Date
- 1995/11/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Computer Systems
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Tae Il JEONG, Sung Jo KIM, "A Block Management Mechanism for Multimedia Files" in IEICE TRANSACTIONS on Information,
vol. E78-D, no. 11, pp. 1498-1508, November 1995, doi: .
Abstract: In general, multimedia files are much larger than ordinary text files because they consist of multiple monomedia. In order to process large multimedia files in real time, the file system must be able to store and access files efficiently. In th UNIX s5 file system, a multimedia file may be scattered into many disk blocks over the entire disk space, and accessing a multimedia file requires a considerable amount of time for random disk head movement. This paper proposes the internal structure of a multimedia file and its inode which is modified from UNIX s5 file system's. Also, we propose a mechanism for allocating and deallocating contiguous disk blocks for large multimedia files using the bitmap tree and compares its performance with that of the UNIX s5 file system. Our results show that the proposed mechanism reduces considerably the number of disk I/Os required to allocate and deallocate contiguous disk blocks. It also reduces the total access time for large multimedia files by approximately 95% due to the contiguous allocation of disk spaces.
URL: https://global.ieice.org/en_transactions/information/10.1587/e78-d_11_1498/_p
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@ARTICLE{e78-d_11_1498,
author={Tae Il JEONG, Sung Jo KIM, },
journal={IEICE TRANSACTIONS on Information},
title={A Block Management Mechanism for Multimedia Files},
year={1995},
volume={E78-D},
number={11},
pages={1498-1508},
abstract={In general, multimedia files are much larger than ordinary text files because they consist of multiple monomedia. In order to process large multimedia files in real time, the file system must be able to store and access files efficiently. In th UNIX s5 file system, a multimedia file may be scattered into many disk blocks over the entire disk space, and accessing a multimedia file requires a considerable amount of time for random disk head movement. This paper proposes the internal structure of a multimedia file and its inode which is modified from UNIX s5 file system's. Also, we propose a mechanism for allocating and deallocating contiguous disk blocks for large multimedia files using the bitmap tree and compares its performance with that of the UNIX s5 file system. Our results show that the proposed mechanism reduces considerably the number of disk I/Os required to allocate and deallocate contiguous disk blocks. It also reduces the total access time for large multimedia files by approximately 95% due to the contiguous allocation of disk spaces.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - A Block Management Mechanism for Multimedia Files
T2 - IEICE TRANSACTIONS on Information
SP - 1498
EP - 1508
AU - Tae Il JEONG
AU - Sung Jo KIM
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E78-D
IS - 11
JA - IEICE TRANSACTIONS on Information
Y1 - November 1995
AB - In general, multimedia files are much larger than ordinary text files because they consist of multiple monomedia. In order to process large multimedia files in real time, the file system must be able to store and access files efficiently. In th UNIX s5 file system, a multimedia file may be scattered into many disk blocks over the entire disk space, and accessing a multimedia file requires a considerable amount of time for random disk head movement. This paper proposes the internal structure of a multimedia file and its inode which is modified from UNIX s5 file system's. Also, we propose a mechanism for allocating and deallocating contiguous disk blocks for large multimedia files using the bitmap tree and compares its performance with that of the UNIX s5 file system. Our results show that the proposed mechanism reduces considerably the number of disk I/Os required to allocate and deallocate contiguous disk blocks. It also reduces the total access time for large multimedia files by approximately 95% due to the contiguous allocation of disk spaces.
ER -
English
