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Distributed Computing

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Originally published in Queue vol. 13, no. 9
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(newest first)

Hubert Kirrmann | Wed, 27 Jan 2016 18:51:24 UTC

Please note that the End-to-End Delay measurement is technically obsoleted by the peer-to-peer Pdelay measurement, which is the only safe way to achieve sub-microsecond accuracy. I miss the more important issue of UTC-TAI and leap seconds. NTP runs on UTC and PTP on TAI.

Bill Torpey | Sun, 24 Jan 2016 16:23:34 UTC

If you found this article interesting, you may also like http://btorpey.github.io/blog/2014/02/18/clock-sources-in-linux/

john | Wed, 20 Jan 2016 01:33:26 UTC

"Unreliable datagram protocol" -- Come on, RFC 768 calls it "User Datagram Protocol." Why the nickname? Silly.

Michael Motta | Tue, 19 Jan 2016 13:25:25 UTC

Your "Lunchtime doubly so" quote reminds me of a scene from the Marx Brothers Duck Soup. Chico, the minister of work, says something like the following to President Groucho. "Boss, the workers are revolting, they want to reduce their hours." The President responds "I know they are revolting! OK. Let's reduce their hours! We'll start by reducing lunch hour to 1/2 hour"...

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