From owner-freebsd-current@FreeBSD.ORG Sat Oct 9 21:10:06 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FBFE16A4D1 for ; Sat, 9 Oct 2004 21:10:06 +0000 (GMT) Received: from mail.mcneil.com (mcneil.com [24.199.45.54]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5AA2643D5E for ; Sat, 9 Oct 2004 21:10:06 +0000 (GMT) (envelope-from sean@mcneil.com) Received: from localhost (localhost.mcneil.com [127.0.0.1]) by mail.mcneil.com (Postfix) with ESMTP id C36A1F1B49; Sat, 9 Oct 2004 14:10:05 -0700 (PDT) Received: from mail.mcneil.com ([127.0.0.1]) by localhost (server.mcneil.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 00662-01; Sat, 9 Oct 2004 14:10:04 -0700 (PDT) Received: from [24.199.45.54] (mcneil.com [24.199.45.54]) by mail.mcneil.com (Postfix) with ESMTP id B3357F1AC4; Sat, 9 Oct 2004 14:10:04 -0700 (PDT) From: Sean McNeil To: Daniel Eriksson In-Reply-To: <1097353701.1204.0.camel@server> References: <1097353701.1204.0.camel@server> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-3gcbj3E6BM9SuQN+3+xI" Message-Id: <1097356204.1152.3.camel@server> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Sat, 09 Oct 2004 14:10:04 -0700 X-Virus-Scanned: by amavisd-new at mcneil.com cc: freebsd-current@freebsd.org Subject: RE: re0 failures at 1Gb vs. 100Mb X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Oct 2004 21:10:06 -0000 --=-3gcbj3E6BM9SuQN+3+xI Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sat, 2004-10-09 at 13:28, Sean McNeil wrote: > On Sat, 2004-10-09 at 13:09, Daniel Eriksson wrote: > > Sean McNeil wrote: > >=20 > > > I have a strange problem that I have with my network that is=20 > > > related to the output rate of my re0. > >=20 > > I have a similar problem, but I haven't reported it before because I wa= sn't > > sure it was the fault of the NIC. > >=20 > > No matter what I do, single connection output rate (TCP) from the RealT= ek is > > erratic and the average is well below expectations when it operates at > > 1Gbit. If I force it to 100Mbit (either through ifconfig, or by placing= a > > cheap 100Mbit switch in between it and GigE switch) the average speed g= oes > > up quite a bit due to a much more stable and consistently high single > > connection throughput. > >=20 > > I have not done much testing of this, but I thought it would be useful = to > > know that others are having issues too. >=20 > I was just about to look into polling mode. Have you tried it? Does it > make a difference? I just read up on this and tried it. It is wouldn't help in my case anyway as polling is for read performance. Tried it anyway and indeed it made no difference. One additional thing I noticed is that from my observations it might be a problem with flushing the dma buffers before the data is transmitted. Just a WAG from some of the visuals I'm seeing in my tests. Cheers, Sean --=-3gcbj3E6BM9SuQN+3+xI Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD4DBQBBaFOsyQsGN30uGE4RAruUAJY5Peu+MCM7Ias6BteH3dxC34ulAKDFqxmo Y0+rxrreQYB9wBJIwQYpPw== =zO58 -----END PGP SIGNATURE----- --=-3gcbj3E6BM9SuQN+3+xI--