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From: David Starner <dvdeug@x8b4e53cd.dhcp.okstate.edu>
Newsgroups: comp.lang.ada
Subject: Re: Ada OS Kernel features
Date: 5 Sep 2001 17:55:15 GMT
Organization: Oklahoma State University
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References: <9n4euv$t9m$1@slb6.atl.mindspring.net>
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Date: 2001-09-05T17:55:15+00:00
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On 5 Sep 2001 06:16:07 -0500, Larry Kilgallen <Kilgallen@SpamCop.net> wrote:
> In article <9n4euv$t9m$1@slb6.atl.mindspring.net>, "Brian Catlin" <briancatlin@mindspring.com> writes:
>> What sort of features would be desirable/required in the kernel?
> 
>> Symmetric multi-processing:
>>   This is the same capability general-purpose operating systems such as NT, VMS,
>> etc. have.  Each processor is of the same type, and has the same view of memory.
>> It then becomes irrelevant which processor is running a particular task.
> 
> You leave out a lot of big systems if you don't support NUMA.

And? Starting out trying to write an OS for everything from an Atari to 
a multimillion dollar mainframe or supercomputer just seems like a bad
idea. I rather drop stuff off the top (where equipment and developers are
scarce) rather than the bottom (where equipment and developers are plentful.)
It can always be added in latter. (Cf. Linux, an OS written specifically for
Linus Torvald's 386, now running on almost anything with 32+ bits.)

-- 
David Starner - dstarner98@aasaa.ofe.org
Pointless website: http://dvdeug.dhis.org
"I don't care if Bill personally has my name and reads my email and 
laughs at me. In fact, I'd be rather honored." - Joseph_Greg