Are there ways to improve the performance of populating the /dev directory on
startup? On a 7350, I make use of some USB and audio drivers. With the stock
kernel and insmodding everthing I need, it take about 8 seconds from power on
to a fully populated /dev directory. Note that I get the shell prompt in about
3 seconds.
I decided to try building a kernel with these module compiled in to improve
start up times. I had to turn off some components e.g. NFS in order to make an
uncompressed kernel small enough to fit in the partition. That aside, I only
got about one second improvement in startup time. I get a shell prompt in 3
seconds but it takes another 4 seconds for /dev to be fully populated.
Clearly, mdev is the culprit. So, are there ways to either prioritize device
entry creation so that some /dev entries show up before others e.g. the audio
and USB devices I care about or eliminate /dev entries I don't care about e.g.
why are there a ton of tty devices?
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