Re: devfs vs udev FAQ from the other side

[David Lang]

On Wed, 14 Sep 2005, Robert Love wrote:

> >   Took an actual devfs system of mine and disabled devfs from the
> >   kernel, then enabled hotplug and sysfs for udev to run.  make clean
> >   and surprise surprise, kernel is much bigger. Enable netlink stuff and
> >   it's bigger still. udev is only smaller if like Greg you don't count
> >   its kernel components against it, even if they wouldn't otherwise need
> >   to be enabled. Difference is to the tune of 604164 on udev and 588466
> >   on devfs. Maybe not a lot in some people's books, but a huge
> >   difference from the claims of other people that devfs is actually
> >   bigger.
>
> What modern system, though, could survive without hotplug and sysfs and
> netlink?  You need to have those components, you want those features,
> anyhow.

most servers and embedded systems can survive just fine without hotplug 
(in fact hotplug is frequently the slowest part of the boot).

sysfs and netlink I would have to think about, I know I don't expliticitly 
use either very much, but I'd have to check to see what may use them that 
I don't think about.

David Lang

> So your comparison is unrealistic.
>
> Your user-space argument is better.  Is ndevfs not sufficient?
>
> 	Robert Love
>
>
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