[time-nuts] Does GPS time reception work everywhere all of the time?

[Poul-Henning Kamp]

In message <201008310920.o7V9KZuI025816 at stenn.ntp.org>, Harlan Stenn writes:
>You wrote:

>> I would _never_ advice configuring more than 5 ntp servers for any
>> machine, unless some of them deliberately are made unavailable and
>> only used for monitoring/sanity-check.
>
>Sounds like a bug to me.

It is.

The problem is that if multiple servers with roughly identical
performance survive the culling, the clock selection codes
commitment-anxiety makes i switch partner far too often.

If you allow the automatic poll-rate tweaker into the game, instead
of sensibly clamping maxpoll, it gets even more interesting.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.