Path: utzoo!utgpu!water!watmath!clyde!cbosgd!mandrill!hal!ncoast!allbery
From: allbery@ncoast.UUCP (Brandon Allbery)
Newsgroups: comp.unix.wizards
Subject: Re: Unix vs. OS/2 (was RE: Pournelle on Unix)
Message-ID: <7067@ncoast.UUCP>
Date: 9 Jan 88 22:53:35 GMT
References: <11156@brl-adm.ARPA> <603@PT.CS.CMU.EDU>
Reply-To: allbery@ncoast.UUCP (Brandon Allbery)
Followup-To: comp.unix.wizards
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 46

[We haven't seen the line-eater since we sent Minnifield and Dixon after it!]

Eddie Wyatt does a good job of defending UNIX vs. OS/2; I'll add a few blows...

As quoted from <603@PT.CS.CMU.EDU> by edw@IUS1.CS.CMU.EDU (Eddie Wyatt):
+---------------
| In article <11156@brl-adm.ARPA>, GUTHERY%ASC%sdr.slb.com@RELAY.CS.NET (guthery%asc@sdr.slb.com) writes:
| > 1) Here are some O/S goodies that stock OS/2 (now playing on my desk)
| > has that stock Unix (also playing on my desk) doesn't have:
| 
| > 	- systemwide semaphores
| 
| 	SYS V maybe I'm not sure.
+---------------

System V definitely.

+---------------
| > 	- file write-though
| 
| 	Not sure what you mean.
+---------------

If this means "synchronous writes", i.e. a write() writes to the disk instead
of a buffer, try System V open(filename, O_WRONLY|O_SYNC).

+---------------
| > 	- system trace
| 	ptrace ?
+---------------

Tracing the system?  I think (not sure yet) SVR3's streams logging may be able
to do this.  I'm still waiting for full manuals... but if it doesn't I suspect
it could be added easily.  I'm not sure I see why it's needed, though.  I've
done this under microcomputer OSes, but this is usually to detect a program
corrupting system memory (which can't happen under UNIX -- is this the reason
it is provided in OS/2?)

Anyway, looks like between System V, BSD, and Mach, OS/2 is covered.  After
the Sun/Microsoft/AT&T merge, UNIX will be all set.  I just wish they'd hurry
it up a bit!
-- 
	      Brandon S. Allbery, moderator of comp.sources.misc
       {well!hoptoad,uunet!hnsurg3,cbosgd,sun!mandrill}!ncoast!allbery
  WARNING!!!  Site "necntc" apparently is no longer a mail feed for ncoast!
PS/2:  Half a computer.  OS/2:  Half an operating system for half a computer.