[LEAPSECS] leap second festivities?
Poul-Henning Kamp
phk at phk.freebsd.dk
Wed Jul 1 09:56:40 EDT 2015
--------
In message <5593EB55.6090401 at meinberg.de>, Martin Burnicki writes:
>> The maximum offset with the linear smear was almost three times larger
>> than with the cosine smear. I think there is a different reason why
>> they switched to the linear smear.
I fear that test has sufficient power to reveal the full picture.
The NTPD PLL is quite temperamental, and when combined with the
median filter and a poll rate of 2048 seconds, things can get quite
"interesting".
I'm pretty sure that the linear smear interacts better with the
median filter at high poll intervals.
>I'm going to run a test with a linear approach, too.
Please run it with "minpoll N maxpoll N" for N in (4...11)
--
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.
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