Stupid question, but isn't 10Gbe a lot faster with e.g. 9000 byte MTU?  I thought I saw in the original post, a 1500 byte MTU:


From original post:

e1a: flags=0x5f4e867<UP,BROADCAST,
RUNNING,MULTICAST,TCPCKSUM,NOWINS> mtu
1500

if the 1500 byte MTU can be changed to 9000 without interrupting service (depends on switch and other configuration, most likely), you might see a speed bump.

Cheers

Patrick