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

On Aug 11, 2016, at 3:08 PM, Tadas <tadas(a)ring.lt&gt; wrote: I've used http://resources.ovirt.org/pub/ovirt-3.6/iso/oVirt-toolsSetup/3.6-3/oVirt...

But also, i've compiled ovirt guest agent from sources from github and had the same result.

-----Original Message----- From: Vinzenz Feenstra Sent: Thursday, August 11, 2016 3:39 PM To: tadas(a)ring.lt Cc: users(a)ovirt.org Subject: 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. Can you please give me the exact version of the ISO you’re using? I need to determine if you have the fixed one or if there’s another bug, the latest version should have this fixed already. > 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 _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users