Comment 4 for bug 1964342

@Lajos
Based on it could you please elaborate the effects of this new QoS driver?
It's very simple, a new bandwidth limitation with ovs meter will be added to current ovs qos_driver.

Interesting questions are is metering rules perform better?
Yes, it should be. Meter only take cares of rate limit, no traffic shaping.

Is the metering approach more accurate or such?
From our test results, it works fine, unified methods make things easy to use.

How metering is better in offloaded case?
Openvswitch can use one same API (rte_flow) to offload flows to smart NIC, including meter related flows and rules.

@Rodolfo,
Meter offloading support can be found here:
https://docs.nvidia.com/networking/display/MLNXOFEDv561033/Changes+and+New+Features

For my understanding, the ovs-agent bandwidth QoS driver is doing traffic rate limit only, no traffic shaping as well. So, meter rules for both packet rate and bandwith limit will be a better solution.