Dissertation > Excellent graduate degree dissertation topics show

910GML -based platform for embedded Linux file system Research and Improvement

Author: LiZongHai
Tutor: ChenShuYu
School: Chongqing University
Course: Computer System Architecture
Keywords: 910GML chipset Flash Memory Linux file system Wear leveling UBI
CLC: TP316.81
Type: Master's thesis
Year: 2010
Downloads: 60
Quote: 0
Read: Download Dissertation

Abstract


With the development of computer and Internet technology, people are no longer confined to the requirements of the network to obtain information in text form, more and more images, animations and even video and other forms of resource filled the entire network, \become a set of images, voice and data as an integrated platform for multimedia services. The continuous development of application technology makes traditional network terminal from both hardware and software aspects are unable to meet the new demands, while the surge in the amount of information storage technology also presents new challenges, as the results of laboratory research network of 863 computers e-Boat in hardware performance has been unable to meet current needs while, at the e-Boat during use, often Flash memory damaged, seriously affected the performance of the product. In addition to the Flash memory operating equally all the physical block, to prevent premature exceeds certain physical block erase cycles become effective bad blocks, to extend the service life of the entire Flash memory wear leveling operation for all Flash file system must have features. This thesis work is summarized as follows: ① the Intel Corporation introduced by Intel 910GML Express chipset as the core embedded system board replacement e-Boat motherboard, making hardware performance has been significantly improved to meet the current needs of the application; ② in UBI ( Unsorted Block Images) wear leveling subsystem, based on the summary results of previous studies, the garbage collection and wear leveling combine the UBI wear-leveling algorithm is improved [2]; ③ learn Linux kernel scheduling algorithm to identify I / O-consuming process and processor consuming process to design the temperature evaluation strategy ideas to make the effect more realistic assessment of the situation; ④ overage area by setting the old physical block temporarily protected, able to reduce the maximum valid data migration times, but also effectively avoid physical blocks allocated for the new protection measures, to achieve physical block wear leveling, while also avoiding the wear leveling overload phenomenon. Comparative experiments show that the improved algorithm greatly improves the UBI wear-leveling subsystem performance. The improved system transplanted to 910GML system board, not only to reduce system power consumption, but also makes the life of Flash memory greatly increased, thereby increasing the e-Boat reliability and durability, so that in the performance of both hardware and software has been significantly improved, able to adapt to the current needs of the application.

Related Dissertations

  1. Research of the Important Technology of Flash File System Based on Large Capacity NAND Flash Memory,TP333
  2. Research on Key Technology and System Implementation of Handheld Terminal Based on ARM,TP368.1
  3. The Research of Data Storage of Automatic Vertical Drilling System Based on DSP,TP333
  4. The Design and Implement of Index in Embedded Database Based on Flash,TP311.13
  5. Research on Storage Management and Error Control Technology of Solid-state Disk,TP333
  6. Research on Data Storage and Management in Advanced Supervision Workstation of Coal Mine Safety,TD76
  7. Fragmentation Impact Analysis and Flash Memory Database Index Technology,TP311.13
  8. Analysis and Design of Flash Storage Management in Embedded System,TP368.1
  9. Compressed Embedded File System: Design and Implementation,TP316
  10. Multi-parameters Measurement System Design of Submunition in the Ejection and Scattering Process,TJ413.3
  11. Study of Multi-bit MNOS Flash Memory,TP333.8
  12. Design and Implementation of Portable Monitoring System for ECG Based on USB Interface,R318.6
  13. Research on Low Voltage LowPower Novel Flash Memory Circuits For Embedded System Applications,TP333
  14. A journaling flash file system analysis and improvement,TP316
  15. Wireless router anti -down File System Design and Implementation,TP311.52
  16. Multi-channel signal data acquisition system,TP274.2
  17. Design on Multi-Channel High-Speed Data Acquisition and Large Capacity Storage System,TN957.51
  18. Research of 8051-compatible Core Based Processor IP with AHB Bus Interface,TP332
  19. The Research on Wear Leveling Algorithm for Flash Memory,TP333
  20. Design and Implementation of File System on Embedded Storage Devices,TP316.2

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Operating system > Network operating system >
© 2012 www.DissertationTopic.Net  Mobile