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.

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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.

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