How to remove unused configs from kernel?

[Sean Crago]

Thu, 25 Dec 2008 09:18:10 -0600 (CST)
Duane Attaway <dattaway at dattaway.net> wrote:
>I ran Steven Rostedt's streamline.pl script to remove unloaded modules
>from the current .config.......Is there an easy way to detect unused kernel
>code from the running kernel and de-config it?

Actually, the question is "is there value in such an exercise on
modern equipment?" I'm not sure that there isn't, but I'm far from
certain that there is. I can see this dramatically cutting down build
time (relevant maybe once ever 2-3 weeks), and I can see this having a
substantial impact on embedded equipment (only really relevant on the
first build), but neither of those things really effects what one does
on a day to day basis. Given modern equipment, is there a substantial
benefit to jumping through all of these extra hoops to optimize a
kernel? On a related note, are there any substantial and significant
reasons not to just run stock kernels at this point?