[ovirt-users] 64 bits oVirtGuestAgent.exe at 99% CPU

[Vinzenz Feenstra]

On 07/10/2014 03:24 PM, Angel Docampo wrote:
> Of course, Vinzenz
>
> The VM is a Windows 7 (I've tried both 32 and 64 bits, same result).
> The C:\Windows\SysWOW64\rhev-agent log says:
>
> Dummy-1::INFO::2014-07-10 
> 14:35:57,417::OVirtGuestService::80::root::Starting OVirt Guest Agent 
> service
>
> After look at the code, perhaps the problem may come on the run() 
> function in OvirtAgentLogic.py
> def run(self):
>        logging.debug("AgentLogicBase:: run() entered")
>        thread.start_new_thread(self.doListen, ())
>        thread.start_new_thread(self.doWork, ())
>        # Yuck! It's seem that Python block all signals when executing
>        # a "real" code. So there is no way just to sit and wait (with
>        # no timeout).
>        # Try breaking out from this code snippet:
>        # $ python -c "import threading; threading.Event().wait()"
>        while not self.wait_stop.isSet():
>            self.wait_stop.wait(1)
>
> Where this "while" is evaluating itself each second... besides the 
> wait function of the python module
>
> By commenting  thread.start_new_thread(self.doWork, ()) the CPU has a 
> normal level when the service starts, but when we make a petition 
> through the host socket, the VM CPU goes to 100%.
>
> Hope this helps, if you need any action from me, please tell me.
Hmm this is really strange, I am running the guest agent pretty 
regularly on Windows 7 and I never noticed anything like this.

Could you please try to use the ovirt windows guest tools iso to install 
the guest agent?
I am somehow surprised about the issue you're seeing.

>
> Regards,
>
> El jue 10 jul 2014 08:56:55 CEST, Vinzenz Feenstra escribió:
>> On 07/08/2014 09:15 AM, Angel Docampo wrote:
>>> I just realized that my 64bit machine has 1 CPU and my 32bit machine
>>> has two. If I set two processors to the 64bit machine,
>>> oVirtGuestAgent.exe process eats a 50% CPU, not 100%, exactly like
>>> the 32bit machine...
>>> So I think there is a problem in the implementation of the agent. As
>>> I'm not a developer myself, I cannot help to improve the agent.
>>> Can I reduce the amount of CPU consumed by the process doing
>>> something, like change the CPU virtualization (at the moment, is host
>>> emulation), or something else?
>>
>> The most interesting information for me really would be what version
>> of Windows you're using exactly.
>> I have never seen the guest agent running on that high CPU so I would
>> need some more information.
>>
>> It'd be great if you could enable debug logging and restart the
>> service (or VM) and get me the logs after it is spiking the CPU so much.
>>
>> Thanks.
>>
>>>
>>>
>>> El 07/07/14 15:50, Angel Docampo escribió:
>>>> Hello everybody,
>>>>
>>>> This is my very first email here. I've just compiled both 32 and 64
>>>> bits oVirtGuestAgent in order to make SSO from my application to a
>>>> Windows VM.
>>>>
>>>> 32 bits works flawlessly, I can login, logout and lock screen at the
>>>> moment, but the 64 bits version cannot login (but can lock screen
>>>> and logout) and the worse of all, puts the VM CPU at 99%, making it
>>>> useless.
>>>>
>>>> Anyone has experieced this? Or give me some guidance to investigate?
>>>>
>>>> Thank you!
>>>> -- 
>>>>
>>>>
>>>>
>>>> *Angel Docampo
>>>> *
>>>> *Datalab Tecnologia, s.a.*
>>>> Castillejos, 352 - 08025 Barcelona
>>>> Tel. 93 476 69 14 - Ext: 706
>>>> Mob. 670.299.381
>>>>
>>>>
>>>> Nota Legal <http://www.dltec.net/aviso-legal>
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>> -- 
>>>
>>>
>>>
>>> *Angel Docampo
>>> *
>>> *Datalab Tecnologia, s.a.*
>>> Castillejos, 352 - 08025 Barcelona
>>> Tel. 93 476 69 14 - Ext: 706
>>> Mob. 670.299.381
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>> -- 
>> Regards,
>>
>> Vinzenz Feenstra | Senior Software Engineer
>> RedHat Engineering Virtualization R & D
>> Phone: +420 532 294 625
>> IRC: vfeenstr or evilissimo
>>
>> Better technology. Faster innovation. Powered by community 
>> collaboration.
>> See how it works at redhat.com
>
> -- 
>
>
>
> *Angel Docampo
> *
> *Datalab Tecnologia, s.a.*
> Castillejos, 352 - 08025 Barcelona
> Tel. 93 476 69 14 - Ext: 706
> Mob. 670.299.381
>
>


-- 
Regards,

Vinzenz Feenstra | Senior Software Engineer
RedHat Engineering Virtualization R & D
Phone: +420 532 294 625
IRC: vfeenstr or evilissimo

Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com