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Date:      Tue, 21 Sep 1999 20:22:32 -0700
From:      "David Schwartz" <>
To:        "Brian F. Feldman" <>, "Luoqi Chen" <>
Cc:        <>, <>
Subject:   RE: Testers please!
Message-ID:  <000001bf04a9$b50ebf90$>
In-Reply-To: <>

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> One question comes to mind: is there a way that the TSCs could become
> desynchronized somehow?  Even though all CPUs run at the same frequency,
> isn't there a strong possibility for slight frequency deviation since
> we use crystal oscillation instead of a more accurate atomic breakdown
> for regulation, or am I just smoking crack?

	All CPUs should be clocked off of the same frequency multiplier off of the
same crystal, so it _should_ be impossible for the TSCs to drift apart due
to that. I guess it might be theoretically possible that something might
cause the TSCs to drift. Perhaps something crazy with APM and/or SMM. It
should be tested.

	It should also be tested that they begin at the same place. Perhaps
processors might take different amount of times to 'come out of' reset.

	I wouldn't assume anything.


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