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Date:      Sat, 24 Aug 1996 19:57:07 -0700 (PDT)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        Francisco Reyes <reyes01@ibm.net>
Cc:        FreeBSD questions <questions@freebsd.org>
Subject:   Re: Kernel customation questions
Message-ID:  <Pine.BSI.3.94.960824195514.218N-100000@gdi.uoregon.edu>
In-Reply-To: <199608250014.AAA23406@pop01.ny.us.ibm.net>

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On Sat, 24 Aug 1996, Francisco Reyes wrote:

> I did my first new kernel today and it worked. What I don't
> understand is why it is taking the same amount of memory as the
> previous one.

It depends on what you put in and take out.  Most of the kernel is
reserved for the various system tables, so your device optimizations may
not have a sizable impact on the kernel size.

> I am also confused about:
> >machine		"i386"
> >cpu		"I386_CPU"
> >cpu		"I486_CPU"
> >cpu		"I586_CPU"
> 
> The explanation in LINT mentions that the machine specifies the cpu
> one is compiling for. Can I change "i386" to "i486"?

No.  Leave machine alone.  You can delete the CPU lines that don't
describe your computer's CPU, though.  If you have a 486, you can dump the
I386_CPU and I586_CPU lines.

That will enable some 486-specific optimizations that may speed things up
a tiny bit.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major




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