一种面向NTFS的海量小文件高速读写方法  

A High Speed Read-Write Method for Massive Small Files on NTFS

作　　者：彭涵钧 黄传波 涂磊 胡晓勤 Peng Hanjun;Huang Chuanbo;Tu Lei;Hu Xiaoqin(Sichuan University,School of Cyber Science and Engineering,Chengdu 610200;Vinchin,Chengdu 610041)

机构地区：[1]四川大学网络空间安全学院,成都610200 [2]成都云祺科技有限公司,成都610041

出　　处：《现代计算机》2022年第3期87-92,共6页Modern Computer

基　　金：国家自然科学基金资助项目(61872255)。

摘　　要：为了解决NTFS(newtechnologyfilesystem)环境下海量小文件读写性能低下的问题,提出了一种高速读写方法。该方法通过解析NTFS系统结构,提取文件记录、目录项等关键元数据,模拟文件系统读取磁盘数据,并通过元数据与用户数据的双预读机制,提升数据读取效率,从而实现了NTFS上海量小文件的高速读写。实验结果证明,该方法能够大幅提升NTFS环境下海量小文件的读写速率。In order to solve the problem of the low read-write performance of massive small files on NTFS(New technology file system),a high-speed read-write method is proposed.This method analyzed the system structure of NTFS,extracted key meta⁃data such as file records and catalog entries,simulated the file system to read disk data,and improved the efficiency of reading data through the double pre-reading mechanism of metadata and user data,so the high speed read-write for massive small files on NTFS is realized.The experimental results show that this method can greatly improve the read-write speed of massive small files on NTFS.

关 键 词：海量小文件 文件读写 文件系统 元数据 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]