Messages in this thread | | | From | (Stuart Lynne) | Subject | Re: An important fact about real time computing | Date | 20 Jul 2000 17:04:09 -0700 |
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In article <2513CDDD84CED211BAC60008C75D45B10474C470@hqmail01.frc.com>, Ingles, Raymond <Ray.Ingles@fanucrobotics.com> wrote: > > Normal Linux is probably adequate for most soft real-time applications, >and probably a lot of firm real-time applications, and perhaps there's >room for some improvement here. I think I agree with Linus that if you >really have a hard real-time constraint, you're better off using a more >specialized system. > > I'd say high-quality audio and video falls somewhere between soft and >firm, depending on application. Sometimes an occasional glitch in the >stream is acceptable, sometimes it isn't. However, I can't think of too >many cases where an audio skip would lead directly to someone's death.
Desktop audio/visual is soft and must be supported in Linux for modern systems or it (linux) will not have any chance at succeeding on the desktop.
Studio/mixing audio/visual is firm and should be supported in Linux but it is ok to specify constrained hardware choices to get better results.
Live audio/visual may be closer to hard and given the cost of retakes may make using RT extensions such as LXRT or RTAI reasonable.
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