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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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