[ntp:questions] NTP 4.2.6p4 Released
unruh at wormhole.physics.ubc.ca
Wed Sep 28 17:42:08 UTC 2011
On 2011-09-28, David J Taylor <david-taylor at blueyonder.co.uk.invalid> wrote:
> "NTP Public Services Project" <webmaster at ntp.org> wrote in message
> news:E1R8ZLK-0007wF-QD at mail.kostecke.net...
>> Redwood City, CA - 2011/09/23 - The NTP Public Services Project
>> (http://support.ntp.org/) is pleased to announce that NTP 4.2.6p4,
>> a Point Release of the NTP Reference Implementation from the
>> NTP Project, is now available at http://www.ntp.org/downloads.html and
>> * Added the NTPD_TICKADJ_PPM environment variable for specifying
>> clock slew on Microsoft Windows
> Does NTPD_TICKADJ_PPM allow the use of clocks which are more than 500 ppm
> out? Sorry if I missed any earlier discussion on this (and I don't run
> Linux). How does one go about determining the value to set - just
> I'm interested because someone has just reported problems with NTP on a
> system which gain (or loses) 1 second in 10 minutes! 1 part on 600! This
> adjustment could be most helpful.
Is he using a virtual system? Is that loss constant ( or is it sometimes
1 sec, sometimes 3 sec sometimes nothing). He is eitehr running a
virtual machine, in which case he should not be using ntpd, or his
operating system is doing an attrocious job of setting the system time
rate of his clock.
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