›› 2014, Vol. 27 ›› Issue (11): 52-.

• 论文 • 上一篇    下一篇



  1. (西安电子科技大学 计算机学院,陕西 西安 710071)
  • 出版日期:2014-11-15 发布日期:2014-11-19
  • 作者简介:赵梦茹(1989—),女,硕士研究生。研究方向:Linux系统应用与网络。E-mail:1025922576@qq.com
  • 基金资助:


Storage IO Tuning for Linux Kernel in Mobile Terminal

ZHAO Mengru,SU Ruidan   

  1. (School of Computer Science and Engineering,Xidian University,Xi'an 710071,China)
  • Online:2014-11-15 Published:2014-11-19



关键词: 移动终端, 存储IO, 文件预读, IO调度策略, EXT4文件系统


The mobile intelligent terminals based on Linux are commonly equipped with flash as storage devices,and Linux kernel provides system parameters which can be set to tune input and output of storage device in user space via Sysfs interface.This paper presents a practical scheme to optimize input and output of storage while analyzing the storage IO requirement of mobile terminal system.The scheme covers three aspects:Page Cache Pre-reading,IO scheduling strategy and EXT4 file system.Test on OMAP4 platform shows that the proposed scheme significantly improves the performance of storage IO.

Key words: mobile intelligent terminal;storage io;performance tuning;IO scheduling;EXT4


  • TP316.2