[fedora-virt] Windows clock synchronization

[Ján ONDREJ (SAL)]

Hello,

On Tue, Jun 25, 2013 at 03:17:06PM -0400, Jamie Fargen wrote:
> On Tue, Jun 25, 2013 at 3:01 PM, Cole Robinson <crobinso at redhat.com> wrote:
> 
> > On 06/24/2013 02:18 PM, Ján ONDREJ (SAL) wrote:
> > Maybe try altering the guest config with:
> >
> >       <clock offset='utc'>
> >         <timer name='pit' tickpolicy='delay'/>
> >         <timer name='rtc' tickpolicy='catchup'/>
> >       </clock>

I have to test it longer time on multiple machines, but I still see clock
skew between -3s to +0.5s in my guest. I have no time guest time
synchronization now (NTPd and timeserver are turned off in windows).

Can I have exact time in windows? Testing on windows 2008R2.

> > https://bugs.launchpad.net/nova/+bug/1011848
> > https://bugzilla.redhat.com/show_bug.cgi?id=828332
> >
> > virt-manager/virt-install should be doing this by default.

This is still not default in Fedora 18. My packages:
	virt-manager-0.9.5-1.fc18.noarch
	libvirt-0.10.2.6-1.fc18.x86_64

Byt, my settings are deprecated. In qemu log I see:
  Warning: option deprecated, use lost_tick_policy property of kvm-pit instead.

> Have you checked the clock of the hypervisor the guest is running on?

Sure, host is synchronized using ntpd.

						SAL