Re: [kvm-devel] Guest Time Question

2007-10-16 Thread Dong, Eddie
Kay Hayen wrote: > Hello Eddie, > > Am Montag 15 Oktober 2007 06:13:44 schrieb Dong, Eddie: >>> That 0.1% kills me though. do you mean, that every 1 second, 1 >>> will be 1ms >>> off? And for every second thereafter, leaving me with 1 second >>> drift after only 1000 seconds? >> >> Oh, that is no

Re: [kvm-devel] Guest Time Question

2007-10-16 Thread Kay Hayen
Hello Eddie, Am Montag 15 Oktober 2007 06:13:44 schrieb Dong, Eddie: > >That 0.1% kills me though. do you mean, that every 1 second, 1 > >will be 1ms > >off? And for every second thereafter, leaving me with 1 second > >drift after > >only 1000 seconds? > > Oh, that is not my intension :-( > I jus

Re: [kvm-devel] Guest Time Question

2007-10-14 Thread Dong, Eddie
> >That 0.1% kills me though. do you mean, that every 1 second, 1 >will be 1ms >off? And for every second thereafter, leaving me with 1 second >drift after >only 1000 seconds? > Oh, that is not my intension :-( I just put a rought estimation here. In old Xen time, I know there are ~10-30 secon

Re: [kvm-devel] Guest Time Question

2007-10-13 Thread Kay Hayen
Hi, thanks for your reply: Am Dienstag 09 Oktober 2007 01:55:16 schrieb Dong, Eddie: > 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 I have just installed KVM 46 into my Ubuntu 7.04 k

Re: [kvm-devel] Guest Time Question

2007-10-11 Thread Dong, Eddie
Kay Hayen wrote: > Hello Dong and others, > > thanks for the replies. I was trying to get KVM up with latest > kernel, but didn't immediately succeed. I have it built with the > instructions from a previous reply and it seemed OK, but I haven't > had a chance to try it out yet. > > As for testing

Re: [kvm-devel] Guest Time Question

2007-10-11 Thread Kay Hayen
Hello Dong and others, thanks for the replies. I was trying to get KVM up with latest kernel, but didn't immediately succeed. I have it built with the instructions from a previous reply and it seemed OK, but I haven't had a chance to try it out yet. As for testing the time shift: To us the vi

Re: [kvm-devel] Guest Time Question

2007-10-08 Thread Dong, Eddie
[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

Re: [kvm-devel] Guest Time Question

2007-10-06 Thread Izik Eidus
Kay Hayen wrote: > Hello, > > tanks you for the reply: > > Am Freitag 05 Oktober 2007 08:35:44 schrieb Izik Eidus: > > > And given that the kernel wouldn't boot either (I guess I will have to wait > for you to rebase on rc9, a lot of your patch got rejected there), I also > have the question i

Re: [kvm-devel] Guest Time Question

2007-10-06 Thread Kay Hayen
Hello, tanks you for the reply: Am Freitag 05 Oktober 2007 08:35:44 schrieb Izik Eidus: > Kay Hayen wrote: > > 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.

Re: [kvm-devel] Guest Time Question

2007-10-04 Thread Izik Eidus
Kay Hayen wrote: > > > 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. > ok, as for now what you can do is run it with: "-tdf -no-kvm-irqchip -no-acpi" thanks.