I would like to reduce boot time for 4.9.11 NXP kernel on imx6ul platform.
I have two sections where kernel where boot process spends a lot of time:
First is when unpacking rootfs. I tried changing to LZ4 compression mode but were no improvements:
0.394669] Trying to unpack rootfs image as initramfs...
[ 2.553149] random: fast init done
[ 9.138342] Freeing initrd memory: 46208K (8267b000 - 8539b000)
Second is when starting udev. I do not know how o reduce the time here:
[ 11.294191] udevd: starting version 3.1.5
Populating dev cache
Does anyone have suggestions/experience on this topic?