Re: [RFC][PATCH] Adjust SHIFT_PLL to improve NTP convergence.

[George Spelvin]

> Yea. The TSC calibration issue has been around for awhile. Although the
> code has been tweaked recently, I'm not seeing that much improved
> consistency from reboot to reboot.
> 
> Its a hard trade off for folks who need very quick boot time, vs folks
> that want very stable and accurate clocks across reboots.
> 
> I'll be looking into the calibration code to see how much is needed to
> bring the error rate down.

The fast estimate is very good.  Would it be possible to do a fine
calibration in parallel with the rest of the boot sequence?  Maybe until
the first adjtimex call?  Or is it essential that the numbers not
change?
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