From owner-freebsd-current@FreeBSD.ORG Fri Jul 20 22:10:44 2007 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4F5A016A417 for ; Fri, 20 Jul 2007 22:10:44 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outR.internet-mail-service.net (outR.internet-mail-service.net [216.240.47.241]) by mx1.freebsd.org (Postfix) with ESMTP id 2997313C45A for ; Fri, 20 Jul 2007 22:10:44 +0000 (UTC) (envelope-from julian@elischer.org) Received: from mx0.idiom.com (HELO idiom.com) (216.240.32.160) by out.internet-mail-service.net (qpsmtpd/0.32) with ESMTP; Fri, 20 Jul 2007 15:10:43 -0700 Received: from julian-mac.elischer.org (nat.ironport.com [63.251.108.100]) by idiom.com (Postfix) with ESMTP id CFC5F125ADD; Fri, 20 Jul 2007 15:10:42 -0700 (PDT) Message-ID: <46A132F4.3030703@elischer.org> Date: Fri, 20 Jul 2007 15:11:00 -0700 From: Julian Elischer User-Agent: Thunderbird 2.0.0.4 (Macintosh/20070604) MIME-Version: 1.0 To: Jack Vogel References: <20070718041159.GC37935@cdnetworks.co.kr> <20070718044700.GE37935@cdnetworks.co.kr> <20070718124350.GA25799@eschew.pusen.org> <46A06D8D.1070604@unsane.co.uk> <20070720122443.GA29372@eschew.pusen.org> <2a41acea0707200810n21843c76s9b0f4f37ef92722f@mail.gmail.com> <20070720184550.GA22877@eschew.pusen.org> <2a41acea0707201203o28722443v8ab2bc9a8450bb92@mail.gmail.com> <20070720200216.GB22877@eschew.pusen.org> <2a41acea0707201451h47ac79a6n1b0bb4987b692c52@mail.gmail.com> In-Reply-To: <2a41acea0707201451h47ac79a6n1b0bb4987b692c52@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Cc: Vince , current@freebsd.org, =?ISO-8859-1?Q?St=E5le_Kristoffersen?= Subject: Re: Slow networkperformance in current? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Fri, 20 Jul 2007 22:10:44 -0000 Jack Vogel wrote: > On 7/20/07, Ståle Kristoffersen wrote: >> On 2007-07-20 at 12:03, Jack Vogel wrote: >> > The stack being capable, as I said, of delivering the goods says >> nothing >> > of the driver, what NIC is it? Did you ask if anyone else with that >> > hardware is seeing a problem, I came into this thread somewhat late. >> >> I'm running this nic: >> re0: port 0x7e00-0x7eff mem >> 0xfd3ff000-0xfd3fffff irq 18 at device 0.0 on pci3 >> >> But I'm guessing it's not the NIC or its drivers fault, because I get the >> same performance (with 100% CPU) using localhost. > > Well, I just tried that on one of the machines here in my cube, running > iperf across a localhost connection I get 1.25 Gb/s, what do you see? > A second slightly older box doing the same thing only gets 977 Mb, I > wonder if that's front side bus relative, would make sense. > > And what do you see? Loopback can sometimes be a lot slower than actual traffic due to scheduling considerations. Robert Watson has more information on this. > > Jack > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"