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- Newsgroups: comp.protocols.time.ntp
- Path: sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!access.usask.ca!sundeck.usask.ca!glenn
- From: glenn@sundeck.usask.ca (Glenn Hollinger)
- Subject: Re: uVAXII clock
- Message-ID: <1992Nov19.204641.7800@access.usask.ca>
- Originator: glenn@sundeck.usask.ca
- Sender: news@access.usask.ca (USENET News System)
- Nntp-Posting-Host: sundeck.usask.ca
- Reply-To: glenn@sundeck.usask.ca
- Organization: University of Saskatchewan
- References: <1eg6e1INNnr4@ni.umd.edu>
- Distribution: inet
- Date: Thu, 19 Nov 1992 20:46:41 GMT
- Lines: 20
-
- From article <1eg6e1INNnr4@ni.umd.edu>, by louie@sayshell.umd.edu (Louis A. Mamakos):
- > In article <1992Nov18.140049.199016@rrz.uni-koeln.de> schittel@geo.Uni-Koeln.DE (Christoph Schittel) writes:
- >
- >>Under VMS a uVAX keeps time very well. What about
- >>Ultrix on uVAX? Is it a good idea to use an old
- >>uVAXII (in constant temperature environment) as stratum
- >>1 server?
- >
- > Given that a MicroVAX-II CPU's clock only has a resolution of 20ms,
- > this is some new interpretation of "keeps time very well."
-
- The microVAX ticks along at 100 HZ, wich put the system clock resolution
- at 10ms, not 20ms. In practice, Xntp can keep the time with 5ms of a
- satellite receiver. Not a great time server compared to new stuff like
- recent SparcStations, but many people have microVAX IIs/2000s pretending
- to be doorstops. It is a reasonable use for this older equipment. It
- doesn't cost much and doesn't overtax these small systems.
-
- Glenn Hollinger,
- University of Saskatchewan.
-