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    SubjectRe: An important fact about real time computing
    On Thu, Jul 20, 2000 at 12:01:30PM +0200, David Balazic wrote:
    > yodaiken@fsmlabs.com wrote:
    > >
    > > On Wed, Jul 19, 2000 at 03:47:01PM -0400, David Mansfield wrote:
    > > > David Balazic wrote:
    > > > >
    > > > > The first sentence my professor maid on the real time computing
    > > > > course was :
    > > > >
    > > > > "A common misconception : Real-time computing is fast computing."
    > >
    > > This is the standard lecture, but don't take it too far. You can control
    > > a robot with deterministic latecnies under 50 usecs, but not with
    > > deterministic latencies of 10 minutes.
    >
    > Yes , but not every process has usec requirements.
    > Think house heating control etc ...

    So deterministic response is necessary for all hard RT, but the range
    of hard RT problems that can be solved is a function of worst case
    latencies.


    >
    > David Balazic

    --
    ---------------------------------------------------------
    Victor Yodaiken
    FSMLabs: www.fsmlabs.com www.rtlinux.com
    FSMLabs is a servicemark and a service of
    VJY Associates L.L.C, New Mexico.


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