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."