ntpq peers formatting needs floating point for time slots.

[Matthew Selsky]

On Wed, Feb 01, 2017 at 02:22:07PM -0800, Gary E. Miller wrote:
> Yo Hal!
> 
> On Wed, 01 Feb 2017 14:06:18 -0800
> Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> > [I tried to submit an issue, but it was reject as spam.]
> 
> Gitlab yesterday found spammers uing their submission system.  Their
> cure was worse than the disease...
> 
> > Somebody recently changed things to print out a 4th digit.  That made
> > things worse.
> 
> Eric did that.  Also notice the LSB is always zero, which is clearly
> also wrong.
> 
> I need it because I can now make a RasPi 3 have an offset and jitter
> consistently less than 0.001.  Details here:
> 
> https://blog.ntpsec.org/2017/02/01/heat-it-up.html

Hey Gary/Hal,

Does the shm driver need any modifications?

# ntpshmmon
ntpshmmon version 1
#      Name Seen@                Clock                Real                 L Prec
sample NTP0 1486408132.108158719 1486408132.107249611 1486408132.107249498 0 -20
sample NTP0 1486408133.108366587 1486408133.107396038 1486408133.107395887 0 -20

My GPS card comes with a daemon that writes to SHM and it looks like it has nanosecond precision.  And maybe the card's daemon needs to be updated to change -20 to -30?


Thanks,
-Matt