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Date:      Mon, 26 Apr 2010 19:00:28 +1000
From:      Da Rock <freebsd-questions@herveybayaustralia.com.au>
To:        xyz <harvey.two.face.kent@gmail.com>
Cc:        Ivailo Tanusheff <i.tanusheff@procreditbank.bg>, Paul B Mahol <onemda@gmail.com>, freebsd-questions@freebsd.org, owner-freebsd-questions@freebsd.org
Subject:   Re: lighten kernel
Message-ID:  <1272272428.29962.30.camel@laptop1.herveybayaustralia.com.au>
In-Reply-To: <4BD12B9E.4090606@gmail.com>
References:  <4BCEF432.7070707@gmail.com> <OF25D83A0C.BCA62A4C-ONC225770C.004928B3-C225770C.00494F93@procreditbank.bg> <4BCEFC8E.2070409@gmail.com> <t2q3a142e751004211202w8b8f1b01k5e014cac1cc7fae9@mail.gmail.com> <4BD0B51F.60308@gmail.com> <x2s3a142e751004221454we4df8223p8b8e97922c328a75@mail.gmail.com> <4BD12B9E.4090606@gmail.com>

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On Fri, 2010-04-23 at 07:09 +0200, xyz wrote:
> Those numbers mean the size in mo, of linux kernel (3.2mo), and freebsd 
> kernel (33,9mo) for the same hardware configuration.
> 

Linux is based more on a minimalist kernel with user mode modules - add
the modules and you'll find its larger, or take away the modules out of
the FreeBSD kernel to get a more accurate reading.

FreeBSD uses kernel mode modules; so it makes it faster, but it makes
the kernel "look" bigger.

And to stave off a flame session, these comments are very subjective and
many will argue on both sides, but the proof is in the pudding as far as
I'm concerned - I run both and my linux is CRAP by my reckoning. My
drivers on the linux break constantly, and render the system useless
without a reboot (and I'm NOT saying that it is anywhere near as bad as
Windows: if I only had a choice of the two the linux would win for
stability). My FreeBSD's have NEVER needed rebooting except for
extraordinary circumstances, and the top stats don't lie either.

> Is it difficult to update the patch?
> 
> 
> On 04/22/10 23:54, Paul B Mahol wrote:
> > On 4/22/10, xyz<harvey.two.face.kent@gmail.com>  wrote:
> >    
> >> Hi
> >> Thank you for your answer
> >> But "I can't believe" that lighten the kernel of useless drivers, saves
> >> only few bytes, by removing whole useless modules (sound, ata/sata, agp...).
> >> Furthermore, I think about free space that could be save too, in the
> >> hard drive this time.
> >> Why for the same configuration, linux kernel is lighter than the Freebsd
> >> kernel? (3.2mo ; 33.9mo)
> >>      
> > Can you be more specific? What those numbers mean?
> >
> >    
> >> And, can you release your patch please?
> >>      
> > I can, but it may be out of sync.
> >    
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