From owner-freebsd-pf@freebsd.org  Tue Mar 28 09:38:59 2017
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From: "Kristof Provost" <kristof@sigsegv.be>
To: "Eugene M. Zheganin" <emz@norma.perm.ru>
Cc: freebsd-pf@freebsd.org
Subject: Re: pf, ALTQ and 10G
Date: Tue, 28 Mar 2017 11:38:49 +0200
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On 28 Mar 2017, at 9:33, Eugene M. Zheganin wrote:
> I need to implement QoS on a 10G interface (ix(4)) with bandwidth of 
> 4-5 Gbit/sec. In general I'm using pf on FreeBSD, since I like it more 
> than ipfw. But I'm aware that it's kind of ancient and wasn't updated 
> for a long time from the upstream (and the upstream still doesn't 
> support SMP). So, my question is - is it worth to stick to pf/ALTQ on 
> 10G interfaces ? Will pf carry such traffic ?
>
Be aware that ALTQ will not let you configure queues with that sort of 
bandwidth.
All of the datatypes used are 32-bit integers and top out at 2 or 4 
Gbps.

Unfortunately dummynet has exactly the same problem, so switching to 
ipfw won’t help.

Regards,
Kristof