nethogs seems to be unable to calculate network usage properly on Ubuntu 22.10

[SmashingQuasar]

Hey!

Thanks a lot for your work, it's great!

I am encountering a relatively strange issue.

When running nethogs, I get a total bandwidth usage of 305KB/sec separated into two processes.
However, if I use the system monitor of Ubuntu, I get a network usage of 700KiB/sec.

Despite the difference in unit (KB != KiB for those unfamiliar with the subtlety), they do not match whatsoever.
305 KB should be about 298 KiB so it's really not the case.

I am wondering what could cause this difference. I am running nethogs as non-root but using sudo.
Am I missing something?

Thanks!

[DiedByDisgust]

are you using vpn? is a common mistake on traffic metric to calculate the traffic twice, once in the vpn and again in the default interface. looks like the 700 may be the 2x of a possible 350.

[tr4nk0]

I'm using nethogs on Ubuntu 22.04.2 LTS and I have found the same issue. I tested nethogs with an iperf client sending 10GB exactly, and nethogs always says it was a bit less... No idea why. Any suggestion what could be happening?