Analysis of The Influence of Block Size on File System I/O Performance

• Main Author: 李維哲
• Other Authors: 張文鐘
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/81236002363208083922

碩士 === 國立交通大學 === 電信工程研究所 === 100 === In the Linux, when a process wants to either write the file back to HDD or read the file from HDD to Memory, the process need File System help to send the write/read request to HDD. Since the write/read procedure need the File System help, the I/O performance of the whole system may be influenced by the different setting of File System parameter. This thesis is mainly concerned about the setting related to block size. We will observe the influence on I/O performance caused by different setting under different condition, such as operating large or small files, and then analyse the benchmark results. First, we will get familiar with the basic structure of File System; then realize the write/read procedure by study the Linux Kernel Source Code; finally, by the I/O test and asistance of Linux Kernel Debugger, we will analyse the cause of the influence of I/O performance.