Hello, I am encountering strange performance issue when benchmarking NAT performance on Armada 3720 with Marvell 88e6190 switch.
Download speed (from internet, via Armada 3720 NAT, via switch to LAN device) is ~750mbps and the CPU running on 100% (mostly in ksoftirq). Upload speed is ~250mbps. When the LAN device is connected to A3720 directly (via SFP), the speeds are both ~1000mbps. I realize that packing/unpacking packets with Marvell header for the switch takes some time, but is such a performance drop expected? This was tested with 5.0.0-rc2 and also 4.14. Thank you. Marek
