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SubjectRe: Alpha Timekeeping - Hardware Questions
On Thu, May 13, 1999 at 03:07:16AM -0700, Bruce Elliott wrote:
> } Subject: 2.2.8 gettimeofday() still doesn't work on Alpha
> } Just booted 2.2.8 on my PC164 and the timetest program (included below)
> } produces negative deltas with high frequency.
> [ ... ]
> I believe that I have read that (some) SMP Alphas have independent CPU
> clocks (i.e. the oscillators that drive the "cycle counters"). Is this
> true? If so, any cycle-counter-based timekeeping will be difficult, as
> it requires drift-correction (something like ntp) at timer interrupt
> level.

Thats rather irrelevant to a UP PC164.


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