Paul Eggert <eggert@cs.ucla.edu> wrote:
I wonder who first proposed and implemented the 24-hour linear scheme that
Google plans to switch to next time. It's not always that easy to change Google's collective mind. Was it someone at Akamai? Amazon? Microsoft?
When I did a survey of leap smear schemes in September, only Amazon was doing -12 to +12 smear. Google originally did a sinusoidal smear, but I gather that interacted worse with ntpd and large polling intervals than piecewise linear. https://www.mail-archive.com/leapsecs@leapsecond.com/msg06152.html
Come to think of it, we should document leap smearing. Proposed patch attached.
It's probably worth noting that ntpd now has an open implementation of leap smear. Here's a link to the documentation in their Bitkeeper repo: http://bk1.ntp.org/ntp-stable/README.leapsmear Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ - I xn-- zr8h punycode