Q: What is a difference between sar %ifutil and nicstat %Util? nicstat
sar
the first is nicstat 3
the second is sar -n DEV 3
why eth0 network interface util is diffrent between sar %ifutil and nicstat %util

A: Maybe you are using an old version sar, which ifutil is wrong for 10Gib network interface.
https://github.com/sysstat/sysstat/issues/75
