[lago-devel] Why do we need qemu-kvm-*ev* ?

[Eyal Edri]

We can build Lago unstable w/o it and run OST on the manual job to verify
none of the tests use it.

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

>
>
> On Mar 16, 2017 1:40 PM, "Eyal Edri" <eedri at redhat.com> wrote:
>
>
>
> On Thu, Mar 9, 2017 at 6:08 PM, Yaniv Kaul <ykaul at redhat.com> wrote:
>
>>
>>
>> On Thu, Mar 9, 2017 at 1:51 PM Nadav Goldin <ngoldin at 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 at redhat.com>
>>> wrote:
>>> > On 9 March 2017 at 11:12, Yaniv Kaul <ykaul at 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 at redhat.com
>>> > RHCE, RHCi, RHV-DevOps Team
>>> > https://ifireball.wordpress.com/
>>> > _______________________________________________
>>> > lago-devel mailing list
>>> > lago-devel at ovirt.org
>>> > http://lists.ovirt.org/mailman/listinfo/lago-devel
>>>
>>
>> _______________________________________________
>> lago-devel mailing list
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>> http://lists.ovirt.org/mailman/listinfo/lago-devel
>>
>>
>
>
> --
> Eyal Edri
> Associate Manager
> RHV DevOps
> EMEA ENG Virtualization R&D
> Red Hat Israel
>
> phone: +972-9-7692018 <+972%209-769-2018>
> 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)
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