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Date:      Fri, 16 Mar 2018 16:44:46 -0500
From:      Mark Felder <feld@FreeBSD.org>
To:        Ian Lepore <ian@freebsd.org>, Patrick Kelsey <pkelsey@freebsd.org>, freebsd-hackers@freebsd.org
Subject:   Re: option TCP_RFC7413 is not in GENERIC
Message-ID:  <1521236686.3747283.1305998104.4B75D739@webmail.messagingengine.com>
In-Reply-To: <1521216713.99081.55.camel@freebsd.org>
References:  <1521062028.2511351.1303413736.6960BF4F@webmail.messagingengine.com> <20180314233811.GA35025@mail.bsd4all.net> <CAD44qMUR_bKOzaWLMatGT3xXWdovWm3Abv8zwu=NCVm6YjEkiQ@mail.gmail.com> <1521216713.99081.55.camel@freebsd.org>

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On Fri, Mar 16, 2018, at 11:11, Ian Lepore wrote:
> On Fri, 2018-03-16 at 16:04 +0000, Patrick Kelsey wrote:
> > The current thinking is that users who care
> > about such performance differences are dealing with extreme workloads t=
hat
> > already motivate them to compile their own kernels, or are working with
> > very resource-constrained platforms, so the way forward is to keep the
> > TCP_RFC7413 kernel option around and enable it by default for the
> > server-class platforms (armd64 and arm64).
>=20
> I have no idea what TCP_RFC7413 even is, but I know I was forced to add
> it to my kernel config when I installed the bind911 package during a
> recent upgrade. =C2=A0This is on a tiny NUC for which saturating even one=
 of
> its gbe interfaces would count as "extreme workload". :)
>=20

Funny, BIND911 is what sent me down this rabbit hole as well.


Thanks for the feedback and information, all! Look forward to these improve=
ments :-)


--=20
  Mark Felder
  ports-secteam & portmgr member
  feld@FreeBSD.org



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