Hi.

On úterý 20. února 2018 19:57:42 CET Eric Dumazet wrote:

Actually timer drifts are not horrible (at least on my lab hosts)

But BBR has a pessimistic way to sense the burst size, as it is tied to
TSO/GSO being there.

Following patch helps a lot.

Not really, at least if applied to v4.15.4. Still getting 2 Gbps less between 
VMs if using BBR instead of Reno.

Am I doing something wrong?

Oleksandr