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

[Angel Docampo]

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.

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