News for hackers. Stuff that matters.

A comment on Living Without Atomic Clocks. Parent comment

Re:Living Without Atomic Clocks by duskwuff on Wednesday February 17, 2016 @05:33PM (#11122070)
Maybe they've mixed up ms and µs? Their claim of "between 100ms and 250ms" for NTP also seems way too high.
[ Parent | on HN ]
Re:Living Without Atomic Clocks by hnkimb3558 on Wednesday February 17, 2016 @06:24PM (#11122402)
These are conservative upper bounds and are meant to encompass long tail offsets. You can usually get NTP down to < 10ms offsets, but if you rely on that, you'll likely run into problems which end up violating your database guarantees.
[ Parent | on HN ]
Re:Living Without Atomic Clocks by jschwartzi on Wednesday February 17, 2016 @06:02PM (#11122266)
It likely has more to do with network latency than with any fundamental physical limitation of the system.
[ Parent | on HN ]