ntopng eats half of my gigabit network

[Grimson]

Then you are probably hitting the limits there, you can't expect to run two I/O and memory heavy systems (a raid and a firewall) with bare metal performance when they have to share a host.

Like I said, the CPU (or it's cores) is only one part of a system.

[bluepr0]

@Grimson the rest of the server is pretty much idle, I stopped and closed everything for the tests. Basically it was just this pfSense VM running on a 20 cores CPU +16GB Ram on Supermicro X10SRL-F (Intel 612 chipset). Don't you think it should get the full gigabit? The VM has the NIC on passthrough and on RAID1 SSD