Date: Wed, 15 Jul 2020 17:07:23 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Patrick Lamaiziere <patfbsd@davenulle.org>, freebsd-net@freebsd.org Subject: Re: poor performance with Intel X520 card Message-ID: <7b994967-17cd-8f4f-cb4d-8fcff349f7e9@grosbein.net> In-Reply-To: <20200710084530.777ce321@mr185033.univ-rennes1.fr> References: <20200710084530.777ce321@mr185033.univ-rennes1.fr>
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10.07.2020 13:45, Patrick Lamaiziere 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.
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