[ntp:hackers] Re: More questions on the ATOM driver.
hmurray at suespammers.org
Tue Mar 7 21:10:46 UTC 2006
> 1. The kernel provides corrections at every tick interrupt, not at
> every second as in the unkernel mode. The kernel particpation is
> necessary if the intrinsic frequency error is over 100 PPM and the
> required timing accuracy is less than 100 microseconds.
I think I'm missing a key idea. Why is a constant frequency offset
I'd expect ntpd to figure out the drift, tell the kernel, and after than the
normal timer ticks would update the clock with the correct(ed) time-per-tick
and all would be wonderful.
Maybe I don't understand what "kernel provides corrections" is correcting.
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