[ovirt-users] 10Gb Networking with OVN

[Beau Sapach]

Yes, we've done some testing.  With an oVirt VM running on a host using
10Gb ethernet copying data to a physical machine also using 10Gb ethernet
we don't see network utilization exceed 800Mbits or so.  A bit of research
online yields some experimentation done by others who used SR-IOV to
achieve 10Gb from a VM.

I'm not sure where the bottleneck is, possibly in the VirtIO driver.

Beau

On Mon, Dec 11, 2017 at 1:23 AM, Dominik Holler <dholler at redhat.com> wrote:

> Is there an indication that the VMs will not take advantage of 10Gb?
>
> On Thu, 7 Dec 2017 15:27:25 -0700
> Beau Sapach <bsapach at ualberta.ca> wrote:
>
> > Hello everyone,
> >
> > I see here:
> > https://www.ovirt.org/blog/2017/09/introducing-ovirt-4.2.0/ that
> > version 4.2 will have OVN support.  Does anyone know if this will
> > allow VMs to take advantage of 10Gb networking without needing SR-IOV?
> >
> >
>
>


-- 
Beau Sapach
*System Administrator | Information Technology Services | University of
Alberta Libraries*
*Phone: 780.492.4181 | Email: Beau.Sapach at ualberta.ca
<Beau.Sapach at ualberta.ca>*
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