On Thu, Mar 16, 2017 at 2:37 PM, Eyal Edri <eedri@redhat.com> wrote:
We can build Lago unstable w/o it and run OST on the manual job to verify none of the tests use it.

The tests are not the issue - it's the L0 qemu-kvm - the way Lago itself uses qemu-kvm.
I'd like to ensure we don't shoot ourselves in the foot by not using it - I assume not.
I'll see if I can get this data from libvirt's 'capabilities', if not, I'll drop it and we'll see how it goes.
It's not like it's a huge performance win right now.
Y.


On Thu, Mar 16, 2017 at 2:03 PM, Yaniv Kaul <ykaul@redhat.com> wrote:


On Mar 16, 2017 1:40 PM, "Eyal Edri" <eedri@redhat.com> wrote:


On Thu, Mar 9, 2017 at 6:08 PM, Yaniv Kaul <ykaul@redhat.com> wrote:


On Thu, Mar 9, 2017 at 1:51 PM Nadav Goldin <ngoldin@redhat.com> wrote:
> Very surprising. Can't think of a good reason why.

 with qemu-kvm-1.5.3-126.el7.x86_64:

libvirt: QEMU Driver error : unsupported configuration: IOThreads not
supported for this QEMU

Ah, my fault for adding iothreads. We could remove them (they don't add more than a small performance improvement, hardly noticeable most likely) 
if it makes deployment harder.

Can you send a patch to remove it or open an issue? 
If we can drop the -ev requirement it will ease the demo tool installation as well.

B
Sure, but is that the only -ev feature we use? 
Y. 

 
Y.


I guess snapshots might be another problem, though never tested it.

>From what I understand, new features are not always backported to the
'plain' 'qemu-kvm'. This[1] was the best explanation I could find,
though its not really complete.



[1] https://lists.centos.org/pipermail/centos-virt/2015-October/004717.html

On Thu, Mar 9, 2017 at 11:26 AM, Barak Korren <bkorren@redhat.com> wrote:
> On 9 March 2017 at 11:12, Yaniv Kaul <ykaul@redhat.com> wrote:
>>
>> Very surprising. Can't think of a good reason why.
>>
> You are welcome to try and either prove me wrong, or find the reason
> (And potentially fix it...)
> Alternatively open a Lago issue and we'll get to it some day...
>
> --
> Barak Korren
> bkorren@redhat.com
> RHCE, RHCi, RHV-DevOps Team
> https://ifireball.wordpress.com/
> _______________________________________________
> lago-devel mailing list
> lago-devel@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/lago-devel

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--
Eyal Edri
Associate Manager
RHV DevOps
EMEA ENG Virtualization R&D
Red Hat Israel

phone: +972-9-7692018
irc: eedri (on #tlv #rhev-dev #rhev-integ)




--
Eyal Edri
Associate Manager
RHV DevOps
EMEA ENG Virtualization R&D
Red Hat Israel

phone: +972-9-7692018
irc: eedri (on #tlv #rhev-dev #rhev-integ)