Tic-Tac... Bomb! Master time and NTP before it's too late
summary
Explains how computer timekeeping works and why precise synchronization matters for distributed transactions, authentication and logging. Covers hardware clocks (quartz oscillators, motherboard clocks), NTP concepts (stratum hierarchy, offset, jitter, leap seconds) and reference clocks, and discusses protocol internals and operational best practices for reliable production systems.
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chapters (22)
- 0:00Conference intro
- 1:02Time through history
- 3:18Longitude at sea
- 5:27Harrison's chronometer
- 7:12Universal time GMT
- 8:15Computers quartz time
- 10:02Atomic clocks second
- 12:12GMT TAI UTC diffs
- 15:05NTP protocol strata
- 17:12NTP sync unstable nets
- 19:18Network delays challenges
- 21:52Leap seconds impacts
- 24:41Famous leap second events
- 26:06Leap seconds end 2035
- 26:46Time sync production
- 28:12NTP client choice
- 30:20NTP metrics analysis
- 32:29Chrony best practices
- 35:38Monotonic clocks duration
- 37:00NTP limits PTP
- 38:48PTP precision hardware
- 40:38Q&A
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