[time-nuts] Divide by five

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Nov 9 15:44:59 EST 2014

In message <CABbxVHtommjwSWq1i=oH-u1S=G6P=xu8E0YzeKaDg-VchgkGwQ at mail.gmail.com>
, Chris Albertson writes:

>NTP does not pick the best clock.   NTP finds
>the subset of clocks that track each other.

NTP does indeed find the best clock from the subset of clocks
which pass its sanity check, and then it uses only that one.

There are several problems with that, and as we speak I'm developing
a new algorithm which at least so far, gives much superior performance.

You can read my musings about this here:


My goal is to release the new NTP client before X-mas.

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.

More information about the time-nuts mailing list