This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Tom, > It is using ntpd and ntpdate is only used just before ntpd is started. > What is really funny is that it would also happen with ntpd NOT > running. Vmware has an option to fix the time in its vms but as best I > can tell it is definitely disabled in this case. This "app note" > > http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006086 > touches on about what is happening. According to the note, you must be running a version of Linux that's at least 3 years old. If you upgrade to a more modern version, does the problem dissapear? > It just so happens we're using a > kernel that you can dynamically change the effective HZ (divider= kernel > option) and when it is set to effective HZ=100, the problem is worse - > maybe since the possible back steps are larger. > > Tom Regards, Steve Emmerson Ticket Details =================== Ticket ID: WCE-307093 Department: Support LDM Priority: Normal Status: Closed