From owner-freebsd-bugs@FreeBSD.ORG Tue Jun 2 18:18:39 2009 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AC34C106566B for ; Tue, 2 Jun 2009 18:18:39 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.170]) by mx1.freebsd.org (Postfix) with ESMTP id 7EF4A8FC2E for ; Tue, 2 Jun 2009 18:18:39 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: by wf-out-1314.google.com with SMTP id 24so2516907wfg.7 for ; Tue, 02 Jun 2009 11:18:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=ySyzQWDL5p4UOzESsqk2u63bvhKaUE9g64fvb8cY9IQ=; b=YKTeKGza3ipbVvWMhqYmpOQ/v8cU1fAG7rDKyQJe04hxP1KuUZTkapkLsY0GNeMT9g UxDuBG+QM+L0kIPE5bNr4i9N9QflGvizMoOZGM6rChCTQquApUnME47mrqqZMyRh5nuI CV1mtsWrm26FjGgNJgkrx4XKyfEmdoAnGaRK0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=ZNJXYSGAWH3WZFYv2sdXwnCzqwt5D0LIFlxCnsHhjIZ9sAyuztqfbRTi4oYOB+mzSw t+xqk3EPlfam7nMqGVUC3xK0o6pqrhNpTidRK0qhj7fbWqH38h1R7hLTVwIVWYN4dFZS 0pWm52wc9mmYhGs8izL7PK7/M6R9MbQJuuHX4= MIME-Version: 1.0 Received: by 10.142.108.3 with SMTP id g3mr3327641wfc.77.1243965152709; Tue, 02 Jun 2009 10:52:32 -0700 (PDT) In-Reply-To: <4A2558EB.4060604@bindone.de> References: <4A25185D.2060304@bindone.de> <4A2558EB.4060604@bindone.de> Date: Tue, 2 Jun 2009 10:52:32 -0700 Message-ID: <2a41acea0906021052m1aa394bfq2d30c0588e41443c@mail.gmail.com> From: Jack Vogel To: Michael Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-bugs@freebsd.org Subject: Re: Bug in igb driver X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2009 18:18:39 -0000 Thanks for noting this, code that is coming has the driver disable LRO when the stack calls for it, I believe it will solve this problem. Regards, Jack On Tue, Jun 2, 2009 at 9:52 AM, Michael wrote: > Michael wrote: > > Hello, > > > > we encountered problems using igb driver on a Supermicro dual quad-core > > system (X7DWU). > > It features an Intel Gigabit dual port controller (82575). > > > > The IP forwarding performance was extremely bad (5 kb/s up to 50 kb/s) > > until we disabled > > Large Receive Offloading in /etc/sysctl.conf: > > dev.igb.0.enable_lro=0 > > dev.igb.1.enable_lro=0 > > > > (changing it using ifconfig -lro and down/up the interfaces didn't help). > > > > With the systctl values set as shown above, we get the expected > > performance ob 50-60 MB/s. > > We tested this on 7.1-RELEASE, 7.2-RELEASE and 7-STABLE. Right now we're > > installing > > 8-CURRENT on the machine to see if it makes a difference. > > > > It think it would be worthwhile to list this issue in the 7.2 release > > errata section (that would've > > saved us a significant amount of time :). > > > > Cheers > > Michael > > > > > > > > > > _______________________________________________ > > freebsd-bugs@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" > > > Turns out that 8/CURRENT of today has the same issues. > Is this okay as a bug report, or should I file a PR seperately? > > _______________________________________________ > freebsd-bugs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" >