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    SubjectRe: Timestamp counters on SMP
    Followup to:  <>
    By author: Alan Cox <>
    In newsgroup:
    > > Do you know of any application using TSC?
    > Several
    > > If yes, how does this application work on i386?
    > They use RDTSC. Unless you set magic flags RDTSC is accessible from user
    > space on anything from a later 486 stepping onwards.

    I think the question is how do they run on an 80386. The answer is,
    "they don't, and it doesn't matter."

    <> at work, <> in private!
    "Unix gives you enough rope to shoot yourself in the foot."

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