Signals and Threads cover image

Clock synchronization with Chris Perl

Signals and Threads

CHAPTER

PTP With Hardware Timestamping

PTP was designed with the idea that you'd have all of the sort of network contributing to your time distribution. PTP sends its sync messages to clients once every second, whereas at least for the reference implementation of NTPD, I believe the lowest you can turn that knob is once every eight seconds.

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