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From: rbowman <bowman@montana.com>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Does Dimdows Know What Time It Is?
Date: 5 Oct 2024 01:24:43 GMT
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On 04 Oct 2024 21:06:49 GMT, Stéphane CARPENTIER wrote:

> In fact, it's difficult. If you are alone and disconnected of the rest
> of the world, you don't care about the time drift. But as soon as you
> plug your computer on Internet, a time shift will be an issue. And if
> the drift is important and you just fetch it from time to time, you will
> be inaccurate timestamps and your experience will be very bad. So it has
> to be done carefully.

If a LAN is disconnected drift can be a problem. Our log file have a line 
like

[Thu Sep 05 15:27:45.979111 2024 (0.007612)] (pid = 10876) (fd = 14) 
attach.c:3740

for each entry. The logs can be busy and show interactions from several 
machines. If A says it sent a message at hu Sep 05 15:25:37.979111 2024 
but is a couple of seconds off from B finding the corresponding entry when 
B received the message can be difficult.

In a Windows environment the primary domain controller will synch all 
machines on the domain but iirc the default period is quite long. The best 
setup is for the PDC to connect to a ntp server.

At work I mount my source tree on the server with the compiler and often 
see messages about clock skew and file timestamps in the future. Annoying, 
but not a show stopper.