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Re: [tlug] Serious clock wrongness
- Date: Sat, 07 Apr 2007 13:06:02 +0900
- From: Alain Hoang <email@example.com>
- Subject: Re: [tlug] Serious clock wrongness
- References: <20070403033019.GB3435@example.com> <20070404083350.GA2716@example.com>
- User-agent: Thunderbird 18.104.22.168 (X11/20070403)
Michael(tm) Smith wrote:"Michael(tm) Smith" <firstname.lastname@example.org>, 2007-04-03 12:30 +0900:
[snip snip] http://support.microsoft.com/kb/918461I have a problem with the clock of a Linux VM that I'm running as a guest OS under Parallels on a MacBook.
Just for an extra pointer the ntp page also has an entry on using NTP within a virtualized guest: http://ntp.isc.org/bin/view/Support/KnownOsIssues
In general, NTP puts a demand on system hardware interrupts which is not something that can be done easily (at the present) on anything except bare hardware (or a better virtualization system) unless you want to spend time doing all those kernel tweaks which I think sucks but well having an incorrect system clock sucks even more.
Another option is to just run ntpdate on an infrequent basis cron job for virtualized guests. Personally I prefer the ntpdate option if you don't need down to the millisecond accuracy on your machines (If you do perhaps virtualized guests aren't the best of options).
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