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

On Aug 11, 2016, at 2:20 PM, Tadas <tadas(a)ring.lt&gt; wrote: 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(a)ring.lt&gt; 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. >>>> _______________________________________________ >>>> Users mailing list >>>> Users(a)ovirt.org >>>> http://lists.ovirt.org/mailman/listinfo/users >>> _______________________________________________ >>> Users mailing list >>> Users(a)ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >> > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users