[ntp:questions] Loop Frequency and Offset
lausts at acm.org
Tue Sep 27 12:58:53 UTC 2011
On 2011-09-27, Miguel Gon?alves <mail at miguelgoncalves.com> wrote:
> One had 180 ppm sand the other 46 ppm without fiddling with machdep.tsc_freq
> sysctl variable. After the correction I am getting -0.041 ppm for the first
> and -0.045 ppm for the second.
> Embedded machines running NanoBSD and they don't do anything else besides
> running NTP. They sit in a temperature controlled room at 20 ?C. Power
> management has been disabled. I checked the BIOS and did not see any
> reference to spectrum clocks.
There are a lot of links off of the leapsecond.com of home made
methods that improve clock stability. I am using one of these PC
clock crystal replacement boards in my Intel Atom.
Installation is meant for someone with better than average soldering
skills. This device replaces your motherboard clock crystal with
something that is more stable.
PGP KeyID = 0x5F22FDC1
GnuPG KeyID = 0x620836CF
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