[ovirt-users] ovirt-Guest-agent CPU usage

[Tadas]

Sorry, managed to send corrupted message.

I do not think there's problems with virtio console drivers. I've
installed ovirt guest tools iso from http://resources.ovirt.org/pub.
 Also I can read data from ovirt agent on hypervisor side by using
socat:
"socat pathtosocketfile  -"
This gives me all information about VM from ovirtagent. But as soon as
i close reading socket, ovirt agent loops in itself and uses whole
single core. If i socat again - load drops and I can see information
from agent again. So problem is that you allways need to have socket
open for read or write on hypervisor side. If not - ovirt agent will
consume one cpu thread. And this happens only in Windows VM.
On Thu, 2016-08-11 at 15:13 +0300, Tadas wrote:
> "socat pathtosocketfile  -"
> This gives me all information about VM from ovirtagent. But as soon
> as
> i close reading socket, ovirt agent loops in itself and uses whole
> single core. If i socat again - load drops and I can see information
> from agent again. So problem is that you allways need to have socket
> open for read or write on hypervisor side. If not - ovirt agent will
> consume one cpu thread. And this happens only in Windows VM.
> 
> 
> On Thu, 2016-08-11 at 14:01 +0200, Vinzenz Feenstra wrote:
> > 
> > > 
> > > 
> > > On Aug 11, 2016, at 12:21 PM, Tadas <tadas at ring.lt> wrote:
> > > 
> > > It seems, that if socket is not opened at hypervisor side, ovirt
> > > agent
> > > starts to loop with loads of "VirtIoCHannel::200::root::Written"
> > > messages per second.
> > 
> > You probably don’t have the virtio drivers for the channel
> > communication installed
> > 
> > please install the VirtIO Console  drivers on that machine and
> > restart the agent service
> > 
> > > 
> > > 
> > > If hypervisor opens ovirt socket, then cpu usage drops to normal
> > > state.
> > > Is this intentional? This does not happen on Linux guest.
> > > On Thu, 2016-08-11 at 13:05 +0300, Tadas wrote:
> > > > 
> > > > 
> > > > Hello groups,
> > > > 
> > > > we are having problem with ovirt-guest agent on Windows os.
> > > > When
> > > > started, agent fully utilizes one core (if machine has single
> > > > core,
> > > > then you will see 100% CPU usage, if there are two cores, then
> > > > you
> > > > will
> > > > get 50% usage etc). Usage does not drop and persists for a
> > > > whole
> > > > time
> > > > ovirt agent is running. This happens on windows 7 32 and 64
> > > > versions
> > > > and also on windows 10. Have anybody had the same issue?
> > > > Thank you.
> > > > _______________________________________________
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> > > > Users at ovirt.org
> > > > http://lists.ovirt.org/mailman/listinfo/users
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> > > Users mailing list
> > > Users at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > 
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