From owner-freebsd-current@freebsd.org  Sat Dec 17 09:51:44 2016
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Date: Sat, 17 Dec 2016 12:51:41 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Olivier =?utf-8?Q?Cochard-Labb=C3=A9?= <olivier@cochard.me>
Cc: Julian Elischer <julian@freebsd.org>,
 freebsd-current <freebsd-current@freebsd.org>
Subject: Re: FreeBSD system profiling and tuning for 10, 11 and 12
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On Sat, Dec 17, 2016 at 10:43:52AM +0100, Olivier Cochard-Labbé wrote:

> On Sat, Dec 17, 2016 at 10:19 AM, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:
> 
> >
> > ===
> > On FreeBSD older than 11.0, use more compact ip_fastfoward routine. It
> > processes most packets falling back to 'normal' forward routine for
> > fragments, packets with options, etc. Can save you up to 20% speed
> > (but will break IPSec).
> >
> >     net.inet.ip.fastforwarding=1
> > ===
> >
> > I am not found in 11/12 this sysctl/tunable.
> >
> 
> ​Yes, this sysctl is available "on FreeBSD ​older than 11.0". It's was
> improved, renamed tryforward, and it's the default method since 11.0.

Sorry, missreading.