Date: Thu, 16 Jul 2020 09:57:32 +0200 From: Patrick Lamaiziere <patfbsd@davenulle.org> To: Eugene Grosbein <eugen@grosbein.net> Cc: freebsd-net@freebsd.org Subject: Re: poor performance with Intel X520 card Message-ID: <20200716095732.728c0917@mr185033.univ-rennes1.fr> In-Reply-To: <7b994967-17cd-8f4f-cb4d-8fcff349f7e9@grosbein.net> References: <20200710084530.777ce321@mr185033.univ-rennes1.fr> <7b994967-17cd-8f4f-cb4d-8fcff349f7e9@grosbein.net>
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On Wed, 15 Jul 2020 17:07:23 +0700 Eugene Grosbein <eugen@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,
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