The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Um sistema de arquivos paralelo é normalmente usado para suportar solicitações excessivas de arquivos de aplicativos paralelos em um sistema de cluster, enquanto a pré-busca é útil para melhorar o desempenho do sistema de arquivos. Este artigo propõe um esquema de pré-busca dinâmica de arquivos baseado em padrões de acesso a arquivos, denominado política de pré-busca de comparação de tabelas, que é particularmente adequado para aplicações científicas paralelas e serviços web multimídia em um sistema de arquivos paralelo baseado em VIA. VIA alivia a sobrecarga de comunicação dos protocolos de comunicação tradicionais, como TCP/IP. A política proposta introduz um método de comparação de tabelas para prever dados para pré-busca. Além disso, inclui um algoritmo para determinar se e quando a pré-busca é realizada usando a largura de banda de E/S atualmente disponível. Os resultados experimentais confirmaram que o uso da política de pré-busca proposta em um sistema de arquivos paralelo baseado em VIA produziu um desempenho superior do sistema de arquivos para vários padrões de acesso a arquivos.
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Yoon-Young LEE, Chei-Yol KIM, Dae-Wha SEO, "Dynamic File Prefetching Scheme Based on File Access Patterns in VIA-Based Parallel File System" in IEICE TRANSACTIONS on Information,
vol. E85-D, no. 4, pp. 714-721, April 2002, doi: .
Abstract: A parallel file system is normally used to support excessive file requests from parallel applications in a cluster system, whereas prefetching is useful for improving the file system performance. This paper proposes dynamic file prefetching scheme based on file access patterns, named table-comparison prefetching policy, that is particularly suitable for parallel scientific applications and multimedia web services in a VIA-based parallel file system. VIA relieves the communication overhead of traditional communication protocols, such as TCP/IP. The proposed policy introduces a table-comparison method to predict data for prefetching. In addition, it includes an algorithm to determine whether and when prefetching is performed using the current available I/O bandwidth. Experimental results confirmed that the use of the proposed prefetching policy in a VIA-based parallel file system produced a higher file system performance for various file access patterns.
URL: https://global.ieice.org/en_transactions/information/10.1587/e85-d_4_714/_p
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@ARTICLE{e85-d_4_714,
author={Yoon-Young LEE, Chei-Yol KIM, Dae-Wha SEO, },
journal={IEICE TRANSACTIONS on Information},
title={Dynamic File Prefetching Scheme Based on File Access Patterns in VIA-Based Parallel File System},
year={2002},
volume={E85-D},
number={4},
pages={714-721},
abstract={A parallel file system is normally used to support excessive file requests from parallel applications in a cluster system, whereas prefetching is useful for improving the file system performance. This paper proposes dynamic file prefetching scheme based on file access patterns, named table-comparison prefetching policy, that is particularly suitable for parallel scientific applications and multimedia web services in a VIA-based parallel file system. VIA relieves the communication overhead of traditional communication protocols, such as TCP/IP. The proposed policy introduces a table-comparison method to predict data for prefetching. In addition, it includes an algorithm to determine whether and when prefetching is performed using the current available I/O bandwidth. Experimental results confirmed that the use of the proposed prefetching policy in a VIA-based parallel file system produced a higher file system performance for various file access patterns.},
keywords={},
doi={},
ISSN={},
month={April},}
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TY - JOUR
TI - Dynamic File Prefetching Scheme Based on File Access Patterns in VIA-Based Parallel File System
T2 - IEICE TRANSACTIONS on Information
SP - 714
EP - 721
AU - Yoon-Young LEE
AU - Chei-Yol KIM
AU - Dae-Wha SEO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E85-D
IS - 4
JA - IEICE TRANSACTIONS on Information
Y1 - April 2002
AB - A parallel file system is normally used to support excessive file requests from parallel applications in a cluster system, whereas prefetching is useful for improving the file system performance. This paper proposes dynamic file prefetching scheme based on file access patterns, named table-comparison prefetching policy, that is particularly suitable for parallel scientific applications and multimedia web services in a VIA-based parallel file system. VIA relieves the communication overhead of traditional communication protocols, such as TCP/IP. The proposed policy introduces a table-comparison method to predict data for prefetching. In addition, it includes an algorithm to determine whether and when prefetching is performed using the current available I/O bandwidth. Experimental results confirmed that the use of the proposed prefetching policy in a VIA-based parallel file system produced a higher file system performance for various file access patterns.
ER -