On Sat, Feb 14, 2015 at 6:38 PM, William Unruh <un...@invalid.ca> wrote:

>
> When timed is actually out I may be interested in testing it again.
>

Ntimed-client.  Again?  So you've installed the code?  <
https://github.com/bsdphk/Ntimed>
That seems unlikely.  Read this: <http://phk.freebsd.dk/time/20141221.html>


> You have not given any indication that the design discussion has moved
> on from ntpd.
>

Have you read the notes?  If you mean why is Ntimed still using PLL instead
of curve-fitting you should ask PHK or Harlan.  Ask eight times.


> > Ntimed has a few constraints -- no research needed:
> > 1) Be safer (simpler) than ntpd.
> > 2) Be smaller than ntpd.
> > 3) Be as good or better than ntpd where better is probably slippery.
>
> None of those indicate that anything about the design has changed.


They arent' intended to.  You said research is needed I was pointing out
that it isn't needed.  The engineering is understood it's a matter of
deciding on a solution and coding it up.  Get the slides <
http://phk.freebsd.dk/_downloads/FOSDEM_2015.pdf> read slides five to nine.


> No idea what is unsafe about ntpd.


Please tell me you're kidding.  Really.  If not then ... well we really
can't even begin to have a discussion until you understand the recent and
current state of NTPd.  Get the slides <
http://phk.freebsd.dk/_downloads/FOSDEM_2015.pdf> see slide 39.


> Smaller may be possible, mainly be
> cleaning up the accretion of code.


PHK's coarse count puts ~300,000 lines of code in the tarball.  That's
overstating it a bit since a significant fraction is comments but there are
~60k lines of real code in the ntpd directory.


> And I would like to hear about what
> "better" means. I have mentioned why I believe chrony is better. What do
> you mean by better?
>

To repeat myself -- Ntimed-client keeps my difficult (poorly networked or
slow) clients at O(1) microsecond offsets.  That's an order of magnitude
better than ntpd.  That's one definition of better.   However, like beauty,
better is in the eye of the beholder.


> Dialup costs? Where did I ever mention dialup costs?
>

You didn't.  The designer of Chrony did.
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