[ovs-discuss] 100G with OvS

Joel Wirāmu Pauling joel at aenertia.net
Fri Nov 2 09:39:57 UTC 2018


Have a look at :

https://m.youtube.com/watch?v=MglrK-JTiqc

Disclaimer I worked for Nuage at the time that was done, and work for
Redhat now.



On Fri, 2 Nov 2018, 22:23 <adamv0025 at netconsultings.com wrote:

> > bounces at openvswitch.org] On Behalf Of Joel Wiramu Pauling
> > Sent: Thursday, November 01, 2018 10:29 PM
> >
> > Currently - doing slow-path through commodity x86 silicon you are pretty
> > much capped at 40gbit; so beyond a few use cases where you are say
> > writting to an NVME array directly within minimal CPU interaction 100G to
> > nodes is relatively limited. I've read several relatively good analysis
> which
> > indicate that we are close to physical limits when we hit around 130Gbit
> with
> > Ethernet ; but currently 40Gbit through existing x86_64 architectures is
> about
> > spot on.
> >
> Hi Joel,
>
> Thank you very much for the info,
>
> I assume this limit is per physical NIC is that the case please?
> (I'm wondering if I'd get a ~100Gbps worth of throughput (100G in + 100G
> out) through the system as a whole -i.e. multiple interfaces, essentially
> turning it into an OVS-router.
>
> Would you please share what is the limiting factor?
> (just found that PCIe 3.0 x16 should be capped at 126.075Gbps usable BW;
> DDR3-2133 @ ~136.5Gbps and Intel® Xeon® Processor E5 Family it's 372.8
> Gbps)
>
> Thakn you very much
>
> adam
>
> netconsultings.com
> ::carrier-class solutions for the telecommunications industry::
>
>
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