Comment 8 for bug 1853638

Hello, Edwin,

We have two separate users/customers filing reports, and I can answer for
one of them. I'll ask the original poster separately as well to reply.

With respect to one of these situations, this is the following system:

Dell PowerEdge R440/0XP8V5, BIOS 2.2.11 06/14/2019

Note that a similar system does not have any issues:

Dell Inc. PowerEdge R430/0CN7X8, BIOS 2.3.4 11/08/2016

So the NIC in the "bad" environment is:

BCM57416 NetXtreme-E Dual-Media 10G RDMA Ethernet Controller (rev 01)
Product Name: Broadcom Adv. Dual 10G SFP+ Ethernet

The NIC in the "good" environment is:

Broadcom Inc. and subsidiaries NetXtreme II BCM57810
10 Gigabit Ethernet [14e4:1006]
Product Name: QLogic 57810 10 Gigabit Ethernet

I'll have to scrub some files and see what I can attach,
apologies, I'll have it here by tmrw.

Unfortunately, we don't have an easy reproducer.
A single iperf and netperf test (both UDP and TCP) showed identical
results from both "good" and "bad" environments.

What we have is an identical kernel, network configuration and
stack with the "bad" system showing double, triple the latency
to the systems from a remote server. I'll have more information
for you shortly here regarding the exact k8 cmd.