Is this normal cpu usage for OPNSense running iperf3?

phenoboy

New Member
Apr 5, 2024
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Screenshot 2024-04-08 214642.png

Here I'm running latest Proxmox 8.1 on Intel N100 with 4 Intel i226V nics with newest 6.8 kernel. I have assigned PCI passthrough for OPNSense VM for this NIC. I seem to be getting proper 1GB speeds from another machine connected to same switch so this is not a problem.

Left is 'top' command from Proxmox console which shows 217% CPU. It seems a bit high. I was expecting something like max 50%.

Is this normal CPU usage?
 
For the comparison I installed latest OpenWRT with PCI passthroug.

Same iperf3 command shows only ~20% of cpu usage.

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