rt hardpps vs no hardpps no rt

Udo van den Heuvel udovdh at xs4all.nl
Tue Aug 21 15:43:12 UTC 2018


Why is the estimated error (in us) as shown by `/usr/bin/ntpq -c 
kerninfo|/bin/awk '/estimated error/ {print $3*1000000;}'` lower for the 
box not running hardpps and not running rt-linux?

The hardpps and rt box shows about 9 times higher estimated error.
How can we explain this?

Kind regards,

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