Re: [PATCH 0/2] Make the TSC safe to be used by gettimeofday().

[Shem Multinymous]

On 11/14/06, Suleiman Souhlal <ssouhlal@xxxxxxxxxxx> wrote:
> I believe that the results returned will always be monotonic, as long as
> the frequency of the TSC does not change from under us (that is, without
> the kernel knowing). This is because we "synchronize" each CPU's vxtime
> with a global time source (HPET) every time we know the TSC rate changes.

Does this hold after a suspend/resume cycle? You could be resuming
with a different CPU clock than what you suspended with, and I'm not
sure anything guarantees an early enough re-sync.

 Shem
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