poor performance with Intel X520 card

[Patrick Lamaiziere]

On Wed, 15 Jul 2020 17:07:23 +0700
Eugene Grosbein <eugen at grosbein.net> wrote:

Hello,

> > That is mostly for the record but it looks like the intel X520 is
> > not very good and generates a high level of interrupts.
> > 
> > On a router / firewall with 500 Kpps in input (dropped by pf) is
> > enough to put the CPUs at 100% busy.  
> 
> [skip]
> 
> > Well, do you think another NIC cards can help to reach a better pps
> > rate ? I think 500 Kpps is quite low for such a machine.  
> 
> I'm sure pf is the bottle-neck. Try testing such card without any
> packet filter enabled and you'll see great difference definitely.

That's not a good news as I don't see how to simplify the ruleset :(
But thanks anyway :)

Regards,