From owner-freebsd-net@FreeBSD.ORG Sun Jan 3 16:38:09 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B11AE1065670 for ; Sun, 3 Jan 2010 16:38:09 +0000 (UTC) (envelope-from Michael.Tuexen@lurchi.franken.de) Received: from mail-n.franken.de (drew.ipv6.franken.de [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa]) by mx1.freebsd.org (Postfix) with ESMTP id 1C2248FC12 for ; Sun, 3 Jan 2010 16:38:09 +0000 (UTC) Received: from [192.168.1.190] (p508FE5E5.dip.t-dialin.net [80.143.229.229]) by mail-n.franken.de (Postfix) with ESMTP id E036E1C0C0BC5; Sun, 3 Jan 2010 17:38:07 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1077) Content-Type: text/plain; charset=iso-8859-1 From: =?iso-8859-1?Q?Michael_T=FCxen?= In-Reply-To: <201001031623.o03GN79u053239@lava.sentex.ca> Date: Sun, 3 Jan 2010 17:38:06 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <1ABE4BCD-135C-44E0-80D8-52DFAE17B3D3@lurchi.franken.de> References: <969646.48748.qm@web63905.mail.re1.yahoo.com> <201001031428.o03ESWf2052691@lava.sentex.ca> <715F260A-A537-475E-BDFA-D2B566840500@lurchi.franken.de> <201001031623.o03GN79u053239@lava.sentex.ca> To: Mike Tancsa X-Mailer: Apple Mail (2.1077) Cc: Barney Cordoba , jfvogel@gmail.com, freebsd-net@freebsd.org Subject: Re: igb interrupt moderation X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Jan 2010 16:38:09 -0000 On Jan 3, 2010, at 5:23 PM, Mike Tancsa wrote: > At 11:13 AM 1/3/2010, Michael T=FCxen wrote: >> > >> > Just a separate datapoint about this driver, unless I apply >> > >> > http://people.freebsd.org/~yongari/igb/igb.buf.patch6 >> > >> > the driver is not really usable for me in RELENG_8 on the dual port = version of the card >> Could you elaborate on what you mean by "not really usable"? >=20 >=20 > Hi, > Some link state issues (getting confused about what port is = up), problems at high packet rates. I dont have this card in = production, but in my test environment it was much more stable on = RELENG_8 with the above patch in that I was not able to wedge the box. = pps rates were pretty ok on a low end i7 as well. Thanks for the information. I'll give it a try. I have a problem when I = flood a system with SCTP INITs. The system under attack becomes completely = unresponsive on the console. However, it continues to send INIT-ACKs back. After the = last commit from Jack it recovers after the attack. Not yet sure what is = going on. Using the em driver does not have the problem. However, when using the = em driver only one core is fully used, when using the igb driver both cores = are fully used. Unfortunately I do not have a more than dual core machine = available for this testing... Best regards Michael >=20 > ---Mike >=20 >=20 > -------------------------------------------------------------------- > Mike Tancsa, tel +1 519 651 3400 > Sentex Communications, mike@sentex.net > Providing Internet since 1994 www.sentex.net > Cambridge, Ontario Canada www.sentex.net/mike >=20 >=20