4 ms·

So, this is sorta indicative of a RSS problem, but on the rpi it could be caused by other things. Check /proc/interrupts to assure you have balanced MSI's, alth

So, this is sorta indicative of a RSS problem, but on the rpi it could be caused by other things. Check /proc/interrupts to assure you have balanced MSI's, although that itself could be a problem too. edit: run `perf top` to see if that gives you a better idea.

geerlingguy 6y ago
Results: 15.96% [kernel] [k] _raw_spin_unlock_irqrestore 12.81% [kernel] [k] mmiocpy 6.26% [kernel] [k] __copy_to_user_memcpy 6.02% [kernel] [k] __local_bh_enable_ip 5.13% [igb] [k] igb_poll When it hit full blast, I started getting "Events are being lost, check IO/CPU overload!"
SoapSeller 6y ago
Another idea will be to increase interrupt coalescing via ethtool -c/C