[EMAIL PROTECTED] wrote: > Hello, > > I am currently evaluating kvm for using it for an application > where correct > time is absolutely critical. We therefore normally use NTP on > these machines > to synchronize them with GPS time. For a virtual machine in my > eyes that > means, the host should be synchronized and the guests just use > that time. > > My test setup is on Kubuntu 7.04 with a minimal Kubuntu 7.04 > guest. I am using > its "linux-virtual" kernel package, so I believe I should be > correctly paravirtualized. > > Now what I see with respect to system time, is that the time > is lagging behind > in the guest. Abount 1 minute after 20 minutes, and 1 second > only a few > seconds after a successful ntpdate to the hosting machine. My > guess, that > shows how little the host is used otherwise. > > So in FAQ and Wiki I didn't find how to make the guest use > host time. Is that > possible at all? For VMWare it is said that clock=pit would > help, but that > seemed to be no change. > > Can you please point me to what to do? > > Best regards, > Kay Hayen > If you can get latest KVM up + clock=pit, I bet you will get a much much accurate guest time. If you still see > 0.1% shift, please file a bug. thx,eddie
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