From owner-freebsd-current Fri Mar 20 08:32:37 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA21050 for freebsd-current-outgoing; Fri, 20 Mar 1998 08:32:37 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from home.dragondata.com (toasty@home.dragondata.com [204.137.237.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA21044 for ; Fri, 20 Mar 1998 08:32:34 -0800 (PST) (envelope-from toasty@home.dragondata.com) Received: (from toasty@localhost) by home.dragondata.com (8.8.8/8.8.5) id KAA00555; Fri, 20 Mar 1998 10:31:41 -0600 (CST) From: Kevin Day Message-Id: <199803201631.KAA00555@home.dragondata.com> Subject: Re: Pathetic FTP performance In-Reply-To: from Cory Kempf at "Mar 20, 98 10:57:30 am" To: ckempf@enigami.com (Cory Kempf) Date: Fri, 20 Mar 1998 10:31:40 -0600 (CST) Cc: freebsd-current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > I am getting really pathetic FTP performance across my LAN. From any > machine to any other machine, I am seeing several hundred k / sec via FTP. > E.g. from my Mac to my SGI, I see between 300k/s - 1M/s, depending on file > size. > > However, when I am running FreeBSD (-Current as of 12 March), I am getting > really pathetic performance... on the order of 0-2 k / second. > > The network is 10baseT, My ethernet is the intel EtherExpress Pro 10/100B > rev 0x02 that is built into the DK440LX motherboard. The net is almost > completely unloaded, so it isn't traffic. > > Running ping generally has a transit time of just under 1 ms, although I am > seeing 4% packet loss (2 packets out of 40). > > Generally, what I am seeing is both low transfer rates as well as *LOTS* of > stalling. > > Any suggestions what is causing this, and how to diagnose / fix it? > > Thanks, > > +C > > I saw something similar when I upgraded from a 2.1 kernel to 2.2.5 here... What I see now is a *flood* of traffic (putting the ethernet at 100%) with nearily 50% collisions, then a long stall, then it picks back up, and flood the ethernet again. With a 2.1 kernel I saw a nice steady stream... I've been unable to find what change prompted this. :) Kevin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message