Mailinglist Archive: opensuse-kernel (79 mails)

[Greg KH <gregkh@xxxxxxx>]

On Sat, Sep 05, 2009 at 09:59:34PM +0200, Jan Engelhardt wrote:
> On Saturday 2009-09-05 21:51, Greg KH wrote:
> > Yes, this is true, but the original question was referring to the -rt
> > kernels, which I did not touch.
> >
> > Anyway, what's the problem of having these drivers built into the kernel
> > and not a module?
>
> That your kernel grows when doing that, and ipv6 itself already
> contributes like 230K. scsi_mod another 140K, just to name two.
> Even if you end up using them, it seems fancier having them as modules :)

But it's slower to boot.  And 99% of all systems that we ship load both
of those modules.

And, by building them into the kernel, you actually save a bit of space,
as the kernel can throw away the __init section, which it does not for
kernel modules.

> [N.B. Over the past year, the amount of modules loaded in a Linux system
> rose near the number of the modules loaded in a Solaris 11beta system.]

Does it actually affect overall performace and is it faster than the
increase in processor power and memory sizes?

thanks,

greg k-h
-- 
To unsubscribe, e-mail: opensuse-kernel+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse-kernel+help@xxxxxxxxxxxx