Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pioneer!eugene
From: eugene@pioneer.arpa (Eugene N. Miya)
Newsgroups: comp.os.misc
Subject: Re: Realtime OS's
Keywords: Realtime
Message-ID: <11032@ames.arc.nasa.gov>
Date: 29 Jun 88 17:47:14 GMT
References: <10450@udenva.cair.du.edu> <2540@homxc.UUCP>
Sender: usenet@ames.arc.nasa.gov
Reply-To: eugene@pioneer.UUCP (Eugene N. Miya)
Organization: NASA Ames Research Center, Moffett Field, Calif.
Lines: 26

I'm somewhat interested in real time OS (for spacecraft control), but
I don't think many manufacturers of machines are interested because
most do surpisingly poor time keep on systems (this is an artifact, and
outcome, not a requirement).  They view the market
place as small.  This is too bad.  SO what are the topics?

A good notation (please Ada(tm) isn't the end all 8-)
scoping (time, syntactic, semantic) rules
Tasking control (interface)
Exception handling (exception scope)
I/O
Realtime in a uniprocessor environment versus a multiprocessor
environment
Types of hardware support (or lack of)
Obviously many others

The event model of real time is kind of a shitty model.  So start
discussing and justify the need for a RTOS group.

Another gross generalization from

--eugene miya, NASA Ames Research Center, eugene@aurora.arc.nasa.gov
  resident cynic at the Rock of Ages Home for Retired Hackers:
  "Mailers?! HA!", "If my mail does not reach you, please accept my apology."
  {uunet,hplabs,ncar,decwrl,allegra,tektronix}!ames!aurora!eugene
  "Send mail, avoid follow-ups.  If enough, I'll summarize."