[$] Providing precise time over the network

Date:
Fri, 13 Dec 2024 16:51:12 +0000

Description:
Handling time in a networked environment is never easy. The Network Time Protocol (NTP) has been used to synchronize clocks across the
internet for almost 40 years but, as computers and networks get faster, the degree of synchronization it offers is not sufficient for some use cases. The Precision Time Protocol (PTP) attempts to provide more precise
time synchronization, at the
expense of requiring dedicated kernel and hardware
support. The Linux kernel has supported PTP since 2011, but the protocol has recently seen increasing use in data centers . As PTP becomes more
widespread, it may be
useful to have an idea how it compares to NTP.

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Link to news story:
https://lwn.net/Articles/1000434/


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