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SubjectRe: [RFC patch 0/4] TSC calibration improvements
Linus Torvalds wrote:
>
> Of course, the 2048 PIT ticks is just a random choice. It could be any
> multiple of 256 ticks, so that error can be made smaller. Maybe it's worth
> spending 10ms on this, and get it down by a factor of five (at which point
> the error on the PIT frequency is probably in the same order of
> magnitude).
>

FWIW, typical error on the 14.31818 MHz clock (used as the PIT, PMTMR
and HPET timebase in most systems) is usually ±50 ppm. High-quality
motherboards which use a TCXO for the 14.31818 MHz clock would have
around ±1 ppm.

-hpa
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