On Tue, Mar 14, 2017 at 12:57 PM Davide Ferrari <davide@billymob.com> wrote:
Hello
the oVirt hosts in my cluster have all 10GbE interfaces (bonded 2 by 2), and I was wondering if a single Linux VM with a virtio interface can reach for example 8Gbps.
Are you able from the host, first of all?
I'm asking because I'm seeing a 100% network usage in some VMs in ovirt VM dashboard but the real traffic in that VM is between 1-2Gbps.
You might be able to, but it's not easy. You'll need to use NUMA and set correctly the vCPUs pinning, perform correct tuning (multiple queues) and so on. With SR-IOV I assume there's a better chance (lower latency), btw. Traffic shown in the dashboard is averaged, is it a sustained 8Gbps or bursty? Y.
Thanks
-- Davide Ferrari Senior Systems Engineer _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users