Path: utzoo!censor!geac!torsqnt!hybrid!scifi!bywater!uunet!telesoft!rlk From: rlk@telesoft.com (Bob Kitzberger @sation) Newsgroups: comp.software-eng Subject: Re: Effect of execution-speed on reliability/testing Message-ID: <1157@telesoft.com> Date: 12 Jan 91 21:56:40 GMT References: <1990Dec19.102005.11830@engin.umich.edu> <470@eiffel.UUCP> <11541@pt.cs.cmu.edu> Organization: TeleSoft, San Diego, CA. Lines: 24 In article <11541@pt.cs.cmu.edu>, tgl@g.gp.cs.cmu.edu (Tom Lane) writes: > > Plauger says you should "choose the slowest mechanism that is fast > enough. By fast enough, I imply that you allow plenty of headroom, in > accordance with the 70% rule." While arguably a worthwhile heuristic, Plauger's approach still begs the question of how fast the system should be. Seat-of-the-pants methods won't get us reliable mission-critical systems of the scale of the new air-traffic control system or Space Station. Anybody using Rate Monotonic Scheduling for filling hard real-time requirements? Any success? .Bob. -- Bob Kitzberger Internet : rlk@telesoft.com TeleSoft uucp : ...!ucsd.ucsd.edu!telesoft!rlk 5959 Cornerstone Court West, San Diego, CA 92121-9891 (619) 457-2700 x163 ------------------------------------------------------------------------------ "Civilization rests on two things," said Hitzig; "the discovery that fermentation produces alcohol, and voluntary ability to inhibit defecation." -- Robertson Davies, "The Rebel Angels"