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    SubjectRe: [ANNOUNCE] Linux 2.6 Real Time Kernel
    Date
    Lee Revell <rlrevell@joe-job.com> writes:

    >> > > To the best of my understanding, this still doesn't provide
    >> > > deterministic hard-real-time performance in Linux.
    >> >
    >> > Using only the VP+IRQ thread patch, I ran my RT app for 11 million
    >> > cycles yesterday, with a maximum delay of 190 usecs. How would this not
    >> > satisfy a 200 usec hard RT constraint?
    >>
    >> I think the keyword here is "deterministic", isn't it?
    >
    > Well, depends what you mean by deterministic. Some RT apps only require
    > an upper bound on response time. This is a form of determinism.

    Sure, but running for a zillion cycles without breaking some limit
    doesn't guarantee that it never will happen. Being able to give such
    a guarantee is what determinism is about.

    --
    Måns Rullgård
    mru@mru.ath.cx

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