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From: terryl@sail.LABS.TEK.COM
Newsgroups: comp.os.misc
Subject: Re: What constitutes a good OS?
Message-ID: <8850@sail.LABS.TEK.COM>
Date: 25 Jan 91 22:53:26 GMT
References: <5461@auspex.auspex.com> <42617@nigel.ee.udel.edu> <5510@auspex.auspex.com> <42793@nigel.ee.udel.edu>
Reply-To: terryl@sail.LABS.TEK.COM
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 33

In article <42793@nigel.ee.udel.edu> new@ee.udel.edu (Darren New) writes:
+In article <5510@auspex.auspex.com> guy@auspex.auspex.com (Guy Harris) writes:
+>What "little files"?  Did I say that each one of those resources would
+>go in a file of its own?  No, I didn't.
+
+Again, I was analogising.  If you don't put them all in little files,
+then you need special code in each application to pull them apart.  If
+every application and the kernel uses this code, then you might as well
+put it in the kernel.
+
+Every time I say "it's easier and more efficient to put it in the kernel"
+you say "but it's just as easy to put it in a library". When I say "it's
+very inefficient to put it into a library as easy to use as the kernel"
+you say "who said I was going to do it the easy way."  I'm not
+arguing that you *can't* put it in the user lib, only that it is an
+order of magnitude harder and slower to put it in the user lib. You have
+not given me any reason so far to doubt that. Try thinking this way:
+It's already in the kernel.  Why would you take it out and put
+it into a user lib?  Then maybe this kind of response would help
+progress the discussion.   :-)           -- Darren


     I don't know; why don't you go ask the folks at CMU who are doing MACH
(and also ask the folks at OSF) why they're taking out the kernel proper what
is basically the whole Unix paradigm, and putting it into a user level server
process??? Note that this is NOT a rhetorical question; I have some answers
myself....

__________________________________________________________
Terry Laskodi		"There's a permanent crease
     of			 in your right and wrong."
Tektronix		Sly and the Family Stone, "Stand!"
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