Light Weight File System

I am trying to develop my own version of ubuntu to use in a real time system that will display parameters of your vehicle. 开发者_运维知识库 Capabilities of the system, no media, logging of vehicle metric will take place, script that update application and interface files from flash drive and main application. Would a lightweight file system free up resources and increase the speed of my overall system. Does anyone know of a file sytem that would out perform ext4 with a system with minimal reading and writing.

ext2 is going to be the most stable and lightweight you are going to get but you pay a price, on crash, it has to fsck. The other filesystems like ext4 have a journal which helps against this.

It really depends on what you are trying to do. More details would be good.

Filesystem is quite less time consuming than the physical storage support.