Interface counter inaccurate

[Daniel Ponte]

On Mon, Feb 15, 2021 at 10:25:47PM +0100, Kristof Provost wrote:
> On 15 Feb 2021, at 22:09, Daniel Ponte wrote:
> > I've noticed that since upgrading to stable/13-n244514-18097ee2fb7c from
> > 12.2-STABLE, throughput on my WAN interface (the box runs pf) is
> > incorrectly showing double in systat -if, as well as in vnstat and pftop
> > from ports. The LAN interface does not appear to be so afflicted.
> > 
> `systat -if` doesn’t read the pf counters, so I wouldn’t expect that to be
> related.
> 
> Those are the interface counters.
> What network card and driver do you use?
> 
> Kristof

I, too, questioned the relation. They are igb(4) I210 builtin interfaces
(in a Protectli Vault 4).


systat -if during said speed test:

           igb1  in     11.670 Mb/s         11.670 Mb/s            1.067 GB
                 out   319.975 Mb/s        320.458 Mb/s            2.062 GB

           igb0  in    640.120 Mb/s        640.690 Mb/s            6.351 GB
                 out     5.824 Mb/s          5.824 Mb/s          987.050 MB 

igb1 is inside, igb0 is outside. The 6GB:2GB difference in totals seen above
is indeed real; this machine did not initiate that much traffic on its own.