[ovirt-users] ovirt-ha-agent cpu usage

[Gianluca Cecchi]

On Fri, Oct 7, 2016 at 2:59 PM, Nir Soffer <nsoffer at redhat.com> wrote:

>
>> wasn’t it suppose to be fixed to reuse the connection? Like all the other
>> clients (vdsm migration code:-)
>>
>
> This is orthogonal issue.
>
>
>> Does schema validation matter then if there would be only one connection
>> at the start up?
>>
>
> Loading once does not help command line tools like vdsClient,
> hosted-engine and
> vdsm-tool.
>
> Nir
>
>
>>
>>
>>>> Simone, reusing the connection is good idea anyway, but what you
>>>> describe is
>>>> a bug in the client library. The library does *not* need to load and
>>>> parse the
>>>> schema at all for sending requests to vdsm.
>>>>
>>>> The schema is only needed if you want to verify request parameters,
>>>> or provide online help, these are not needed in a client library.
>>>>
>>>> Please file an infra bug about it.
>>>>
>>>
>>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>>
>>
>> Here is a patch that should eliminate most most of the problem:
>> https://gerrit.ovirt.org/65230
>>
>> Would be nice if it can be tested on the system showing this problem.
>>
>> Cheers,
>> Nir
>> _______________________________________________
>>
>>

this is a video of 1 minute with the same system as the first post, but in
4.0.3 now and the same 3 VMs powered on without any particular load.
It seems very similar to the previous 3.6.6 in cpu used by ovirt-ha-agent.

https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/view?usp=sharing

Enjoy Nir ;-)

If I can apply the patch also to 4.0.3 I'm going to see if there is then a
different behavior.
Let me know,

Gianluca
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