40GBE - OVS vs Linux Bridge

[binarian]

Simple question, but perhaps a not-so-simple response. I am creating a new proxmox rig that will support 40GBE networking. I've read that OVS is better for >10GBE scenarios, but I've also read that OVS can tend to be unstable. Everything I've read is from at least 2 years ago. I've been using a standard Linux Bridge setup for the past 4 or 5 years without issue, but that's been using 10 or 1 gigabit.

What's the 2022 recommendation for running proxmox with 40GBE networking...OVS or a standard linux bridge?

 

[spirit]

use standard linux bridge. (and yes, ovs is more buggy/unstable)


the only way for ovs to best faster than bridge, is to use ovs-dpdk and it's not supported by proxmox.
and it's mainly for pps, no banddwith. you can reach easily 40GB/s without any problem with bridge.

Note than 40gbits/s (and even more 100gbits/s), need good/fast cpu with enough memory channels to handle the memory bandwith too.

 

[binarian]

it's mainly for pps, no banddwith. you can reach easily 40GB/s without any problem with bridge.

Note than 40gbits/s (and even more 100gbits/s), need good/fast cpu with enough memory channels to handle the memory bandwith too.

Ah, OK. That I didn't know. I'll stick with the bridge then (which honestly, I like more anyway). CPU/memory won't be a problem...at least it darned well better not be. Latest-gen Epyc cpu which has 8-channel memory.

Thank you!