Re: most lightweight debian server
i will love to find out all the option available. I just one to ask one
more thing. i hope it
is not too much. Isn't the kernel have modular support. able to load and
needed and unneeded modules on the fly?
How much is the improvement compare to the strip down version of kernel
to the modular version in term of performance? (i know disk space is out
strip down produce small kernel size)
The kernel itself it not especially modular. However, there are many,
many options to leave unnecessary code out of it.
The device drivers are the exception. The kernel was improved a long
time ago to allow the loading of drivers as modules. Unloading has been
possible, but it had to be done explicitly. Now the kernel can be
configured to load and unload modules automatically. Be sure and enable
that option when you are configuring your version of the kernel.
(Well, maybe. That option will make the kernel bigger. It might be
better to load and unload modules manually. Hmmmmm...)
The size of the kernel isn't the only factor. Many things require
"kernel memory". The kernel keeps housekeeping information. For
instance, the scheduler needs to keep track of how recently a thread has
had the CPU (to prevent starvation). A simpler scheduler may use less
memory, because it keeps track of fewer statistics.
All of these things I mentioned are merely examples. Other people can
advise you better on the specific things you need to be considering.