From owner-freebsd-performance@FreeBSD.ORG  Sat Jun 28 04:43:48 2003
Return-Path: <owner-freebsd-performance@FreeBSD.ORG>
Delivered-To: freebsd-performance@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9E5CF37B401
	for <freebsd-performance@freebsd.org>;
	Sat, 28 Jun 2003 04:43:48 -0700 (PDT)
Received: from arthur.nitro.dk (port324.ds1-khk.adsl.cybercity.dk
	[212.242.113.79])
	by mx1.FreeBSD.org (Postfix) with ESMTP id F17AC44001
	for <freebsd-performance@freebsd.org>;
	Sat, 28 Jun 2003 04:43:47 -0700 (PDT)
	(envelope-from simon@arthur.nitro.dk)
Received: by arthur.nitro.dk (Postfix, from userid 1000)
	id 6289110BFA8; Sat, 28 Jun 2003 13:43:46 +0200 (CEST)
Date: Sat, 28 Jun 2003 13:43:46 +0200
From: "Simon L. Nielsen" <simon@nitro.dk>
To: Craig Reyenga <craig@craig.afraid.org>
Message-ID: <20030628114342.GB401@nitro.dk>
References: <001f01c33d61$070388a0$0200000a@fireball>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="gatW/ieO32f1wygP"
Content-Disposition: inline
In-Reply-To: <001f01c33d61$070388a0$0200000a@fireball>
User-Agent: Mutt/1.5.4i
cc: freebsd-performance@freebsd.org
Subject: Re: Tuning Ggiabit
X-BeenThere: freebsd-performance@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Performance/tuning <freebsd-performance.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-performance>
List-Post: <mailto:freebsd-performance@freebsd.org>
List-Help: <mailto:freebsd-performance-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 28 Jun 2003 11:43:48 -0000


--gatW/ieO32f1wygP
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On 2003.06.28 03:35:43 -0700, Craig Reyenga wrote:
> (This message may show up three times, I apologise if so.)
>=20
> Hi,
>=20
> I've been trying to get my gigabit link to run as fast as possible, but I
> have run out of ideas. I've documented (though not very well) what I have
> done thus far:
>=20
> http://craig.afraid.org/a/b?page=3Dcomputer/gigabit
>=20
> If there is any more I can do besides what I have already done, I would l=
ove
> to hear it. Please avoid suggestions that require spending money.
>=20
> Thanks in advance,

When using the em driver under FreeBSD, it can be useful to try to
addjust some tuneables in sys/dev/em/if_em.h.  Specifically EM_RDTR and
EM_TADV.

With the hardware in the FreeBSD box I don't think you should expect it
to go that fast, since the bus/CPU will be the bottleneck.

I would suggest looking at vmstat and similar tools. It can be very
useful to find what the bottleneck really is.

--=20
Simon L. Nielsen

--gatW/ieO32f1wygP
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (FreeBSD)

iD8DBQE+/X9u8kocFXgPTRwRArksAKDYjiG4kF/unQA5XZcm8ebZXst6TwCgmLZa
v26EcFVwd61vqDm04VUhzUY=
=CpMi
-----END PGP SIGNATURE-----

--gatW/ieO32f1wygP--