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From: Don Yuniskis <dgy@rtd.com>
Message-Id: <199605250222.TAA07299@seagull.rtd.com>
Subject: Re: Mac Linux:  Nothing to worry about :-)
To: jehamby@lightside.com (Jake Hamby)
Date: Fri, 24 May 1996 19:22:47 -0700 (MST)
Cc: freebsd-hackers@freefall.FreeBSD.org (FreeBSD hackers)
In-Reply-To: <Pine.AUX.3.91.960523220732.22381B-100000@covina.lightside.com> from "Jake Hamby" at May 24, 96 11:28:03 am
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> There is one fortunate thing out of all this:  The OSF and Apple-developed
> source code to the Mach kernel and Linux server are all freely available
> and covered under a standard BSD-style copyright! Whoohoo!  This means a
> Free/NetBSD port to PowerMac is now feasible!  Unfortunately I lack the
> PPC assembly language and kernel hacking knowledge to undertake such a
> beast, however I sincerely hope somebody else (Terry?) decides to take
> this on.
> 
> The question is:  Would it be best to build a BSD "personality"
> server on top of a Mach kernel, as MkLinux is built, or scrap that idea 

I assume MkLinux is a single server?

> and build a traditional BSD kernel?  OSF claims the advantage of Mach 
> lies in SMP, real-time, and portability (port the microkernel to a new 
> architecture, then simply recompile the Linux server), but obviously this 
> is going to use more RAM and CPU than a "native" BSD kernel.  Comments?

There are many performance hits with the microkernel approach.  Though,
with today's screamers and memory prices so low, I wonder if it really
matters?  And, while "multipersonality" hosts are feasible, I doubt
anyone has ironed that issue out completely...

Just my $0.02...