nanog mailing list archives
Re: F-ckin Leap Seconds, how do they work?
From: Steve Allen <sla () ucolick org>
Date: Wed, 4 Jul 2012 08:58:11 -0700
On 2012 Jul 4, at 08:50, Jimmy Hess wrote:
So accept the inaccuracy and correct the clock in the normal way that NTP corrects clocks that have drifted.
This is basically the "leap smear" that google instituted after the issues in 2005. It works nicely in cloud applications where real-time is not an issue. It does not work so well when precision calculations of real-time physics are important, nor in heterogeneous environments where not all devices pay attention to NTP or some handle the leap differently than others. Those are places where a kernel should never be asked to do what the combination of POSIX and leap seconds demand. -- Steve Allen <sla () ucolick org> WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855 University of California Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m
Current thread:
- Re: F-ckin Leap Seconds, how do they work?, (continued)
- Re: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Jay Ashworth (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Steve Allen (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? George Herbert (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tyler Haske (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Majdi S. Abbas (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tyler Haske (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Robert E. Seastrom (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Jimmy Hess (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Steve Allen (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Scott Howard (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Dave Hart (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Saku Ytti (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? valdis . kletnieks (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Saku Ytti (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Saku Ytti (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Nick Hilliard (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Saku Ytti (Jul 03)