From owner-freebsd-net@FreeBSD.ORG Tue Oct 4 12:01:01 2005 Return-Path: X-Original-To: net@freebsd.org Delivered-To: freebsd-net@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9AFED16A41F for ; Tue, 4 Oct 2005 12:01:01 +0000 (GMT) (envelope-from ferdinand.goldmann@jku.at) Received: from mail2.edvz.uni-linz.ac.at (mail2.edvz.uni-linz.ac.at [140.78.3.69]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4C6DB43D49 for ; Tue, 4 Oct 2005 12:00:59 +0000 (GMT) (envelope-from ferdinand.goldmann@jku.at) Received: from emailsecure.uni-linz.ac.at (emailsecure.uni-linz.ac.at [140.78.3.66]) by mail2.edvz.uni-linz.ac.at (8.13.3/8.13.3) with ESMTP id j94C0olg056601 for ; Tue, 4 Oct 2005 14:00:52 +0200 (CEST) (envelope-from ferdinand.goldmann@jku.at) Received: from [140.78.164.13] (jku006048.edvz.uni-linz.ac.at [140.78.6.48]) by emailsecure.uni-linz.ac.at (Postfix) with ESMTP id DE834228019 for ; Tue, 4 Oct 2005 14:00:47 +0200 (CEST) Message-ID: <43426EF3.3020404@jku.at> Date: Tue, 04 Oct 2005 14:00:51 +0200 From: Ferdinand Goldmann Organization: Johannes Kepler University User-Agent: Thunderbird 1.4 (Macintosh/20050908) MIME-Version: 1.0 To: net@freebsd.org References: <4341089F.7010504@jku.at> <20051003104548.GB70355@cell.sick.ru> <4341242F.9060602@jku.at> <20051003123210.GF70355@cell.sick.ru> In-Reply-To: <20051003123210.GF70355@cell.sick.ru> Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.44 Cc: Subject: Re: dummynet, em driver, device polling issues :-(( X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ferdinand.goldmann@jku.at List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Oct 2005 12:01:01 -0000 Gleb Smirnoff wrote: > On Mon, Oct 03, 2005 at 02:29:35PM +0200, Ferdinand Goldmann wrote: > F> Gleb Smirnoff wrote: > F> > F> >All I can say: I have faced this problem, too. :( This is not problem in > F> >polling, but in em. > F> > > F> > F> Thank you! Just now I downloaded the driver from the Intel website; seems > F> to compile fine, but I'll have to wait at least until tomorrow morning to > F> test it. > F> > F> Do you have any experiences with the Intel driver? > > Please share your results with community. > Ok, to followup on this issue: Today I installed the driver which I had downloaded from the Intel website (em-3.2.15.tar.gz). This driver does not solve the issue with Ierrs rising rapidly when polling is enabled (I tried HZ=1000 and burst_max 300 and 600). Neither throughput nor interrupt load were any better than with the old driver; in fact I'd say they were worse. :-( So we ended up rebooting with the old kernel. This is pretty bad, because we did assume that Intel cards are among the ones well supported by FreeBSD. Can anyone give recommendations on copper Gbit cards that work _well_ with recent FreeBSD 5-STABLE? -- >> Ferdinand Goldmann //// | | >> EMail: Ferdinand.Goldmann@zid.uni-linz.ac.at |--00 | UNIX | >> Tel. : +43/732/2468/9398 Fax. : +43/732/2468/9397 C ^ | | >> EMail: Ferdinand.Goldmann@zid.uni-linz.ac.at \ ~/ ~~~|~~~~~~~~ >> PGP D4CF 8AA4 4B2A 7B88 65CA 5EDC 0A9B FA9A 13EA B993| |-----3