Hi--

On Nov 4, 2013, at 9:40 AM, Antonio Marcheselli <pu...@me.la> wrote:
> Would it be wiser to delete the drift file at boot - by script - and let ntpd 
> resync and recreate a new drift file?

Normally, no.

The drift file lets ntpd perform a first-order correction of the average 
intrinsic drift of the local clock even if ntpd can't get time from any other 
sources.  However, if the drift can't be computed correctly because of some 
unusual problem-- and a systemic drift of over 500ppm is fairly unusual-- then 
deleting the drift file might help.

> As mentioned, I don't really need my system to be synced down to the 
> millisecond, if ntpd takes a few hours to settle and the time is off up to a 
> few seconds during that time it's perfectly fine with me.

Gracious.  In that case, run ntpdate via cron every hour or so and you'll 
probably stay within that tolerance even if ntpd itself can't manage to stay in 
sync.  However, if switching your system's clock source from whatever you are 
using now to HPET, ACPI, etc improves matters so that ntpd remains stable, that 
would obviously provide much better timekeeping.

Regards,
-- 
-Chuck

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