On Tue, Mar 14, 2017 at 12:57 PM Davide Ferrari <[email protected]> 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 > [email protected] > http://lists.ovirt.org/mailman/listinfo/users >
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