1 / 2

LGeDBMS : a Small DBMS for Embedded System with Flash Memory

LGeDBMS : a Small DBMS for Embedded System with Flash Memory. Volume. Logical File. Extent. Page. LGeDBMS Optimized to flash memory with LFS (Log-structure File System) design principle: out-of-place update Compact size suitable for consumer electronic appliances

ide
Download Presentation

LGeDBMS : a Small DBMS for Embedded System with Flash Memory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LGeDBMS: a Small DBMS for Embedded System with Flash Memory Volume Logical File Extent Page • LGeDBMS • Optimized to flash memory with LFS (Log-structure File System) design principle: out-of-place update • Compact size suitable for consumer electronic appliances • With transaction process reducing expensive flash write I/Os: PID mapping table versioning scheme 1 Extent = Set of pages File 1 File Map Extent Map Page Map Vol Header 1 Logical Page = 1 Physical Page Page Num 0 Page Num 1 Page Num 2 Page Num 3 Page Num 4 Page Num 5 Page Num 6 Page Num 7 File 2 PID Mapping Table 1 block = Set of pages Storage <Storage Structures of LGeDBMS>

  2. LGeDBMS: a Small DBMS for Embedded System with Flash Memory • PIM Component • Middleware for Personal Information (eg. contact) Management in mobile phones • Implemented on LGeDBMS to support transaction/recovery and general schema • Provides unified development environment for PIM application such as a phonebook • Demonstrates effectiveness of LGeDBMS based on flash memory with PC simulators and a real phone PIM Applications Phonebook Group Speed Dial Scheduler To Do PIM Component APIs Config Data Mngt. Schema Mngt. Data Model Porting Layer LGeDBMS Flash Memory Device <PIM Component & PIM Application>

More Related