Re: Time keeps on slippin, slippin... (serious clock drift; suggestions??)

[ponga <ponga@picturewell.com>]

On Apr 15, 5:50 am, John Hasler <jhas...@debian.org> wrote:
> Paul E Condon writes:
> > Look into the package chrony.
>
> I agree that he should install Chrony (everyone should :)) but I think he
> has more wrong than just an outlier crystal.  Four minutes per hour is
> 66,667 parts per million.  You can do better than that with an rc
> oscillator.
>
> <snipped> <

Thanks, I'll look into chrony. Ya, I've never had this serious of a
drift before. Here is some drift info, in case you are interested:
vertigo:~# python drift-test.py -s pool.ntp.org 10
15 Apr 09:14:56         offset: 0.081674        drift: 22401.3333333
ppm
15 Apr 09:15:07         offset: 0.409953        drift: 28248.7857143
ppm
15 Apr 09:15:19         offset: 0.734122        drift: 27678.9230769
ppm
15 Apr 09:15:30         offset: 1.051257        drift: 28021.2702703
ppm
15 Apr 09:15:41         offset: 1.341924        drift: 27655.2916667
ppm
...

The clock source is currently HPET, I've heard of people disabling
ACPI to fix the drift, or specifying a different clock source.. but
I'm not sure which is the solution...

Anyway, thanks guys. I'll try chrony, and perhaps some other tricks...

--ponga