From owner-freebsd-questions@FreeBSD.ORG Mon Feb 20 09:47:36 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A983416A50F for ; Mon, 20 Feb 2006 09:47:36 +0000 (GMT) (envelope-from bsd@bathnetworks.com) Received: from lmail.bathnetworks.co.uk (mail.bathnetworks.com [84.92.24.252]) by mx1.FreeBSD.org (Postfix) with ESMTP id 161D643D46 for ; Mon, 20 Feb 2006 09:47:34 +0000 (GMT) (envelope-from bsd@bathnetworks.com) Received: (qmail 6499 invoked by uid 510); 20 Feb 2006 09:50:04 +0000 Received: from 127.0.0.1 by lmail.bathnetworks.co.uk (envelope-from , uid 508) with qmail-scanner-1.24-st-qms (clamdscan: 0.88/1261. spamassassin: 3.0.2. perlscan: 1.24-st-qms. Clear:RC:0(127.0.0.1):SA:0(-4.7/5.0):. Processed in 2.898171 secs); 20 Feb 2006 09:50:04 -0000 X-Spam-Status: No, hits=-4.7 required=5.0 X-Antivirus-MYDOMAIN-Mail-From: bsd@bathnetworks.com via lmail.bathnetworks.co.uk X-Antivirus-MYDOMAIN: 1.24-st-qms (Clear:RC:0(127.0.0.1):SA:0(-4.7/5.0):. Processed in 2.898171 secs Process 6483) Received: from localhost (HELO 192.168.0.50) (bsd@bathnetworks.com@127.0.0.1) by lmail.bathnetworks.co.uk with SMTP; 20 Feb 2006 09:50:01 +0000 Received: from 192.168.0.107 (SquirrelMail authenticated user bsd@bathnetworks.com) by 192.168.0.50 with HTTP; Mon, 20 Feb 2006 09:50:01 -0000 (GMT) Message-ID: <1236.192.168.0.107.1140429001.squirrel@192.168.0.50> In-Reply-To: References: Date: Mon, 20 Feb 2006 09:50:01 -0000 (GMT) From: bsd@bathnetworks.com To: "Xn Nooby" User-Agent: SquirrelMail/1.4.4 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal Cc: freebsd-questions@freebsd.org Subject: Re: WinSCP mega-slowness X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Feb 2006 09:47:36 -0000 > Well, it's good to know I'm not the only one seing this. Right now both > machines are running FreeBSD, since I gave up on waiting for Windows to > copy > the files. The CPU load on Window when sending 1 meg per second is > usually > about 30%, while the Unix box is only at 1-2%. When I have 2 Unix boxes > sending/receiving, I think the load is like 4-5% on both. I'm building a > bunch of packages right now, so I can't get the exact number. I could try > the openssh patch later in the week, that would be great if there was a > unix-side fix for this. Of course as I run FreeBSD more, and Windows less, > the problem will go away, too. > > thanks! > > > > On 2/20/06, Andrew Pantyukhin wrote: >> >> On 2/20/06, Xn Nooby wrote: >> > For about a year I have noticed that whenever my Windows boxes talk to >> my >> > Unix boxes, they communicate at about 1/10 normal speed. I copy lots >> (300GB) >> > of large files back and forth between machines as I try different >> OS's, >> and >> > I always see this. >> > >> > Specifically, if I copy from FreeBSD to FreeBSD, files transfer at 11 >> megs >> > per second. Between FreeBSD and Linux, at about 8 megs per >> second. Between >> > FreeBSD and Windows, about 1 megabyte per second. This is on >> identical >> > hardware. I've told other people about this, and they usually say I >> must be >> > doing something wrong, but recently a friend of mine upgraded a >> Windows >> box >> > to SP2, and now they are getting this same slowness. When I copy from >> > Windows to WIndows (XP or W2k), I get 11 megs per second. >> > >> > My machines are two P4's with gigabit NICs, and I'm using WinSCP and >> > (somtimes) pscp.exe on WIndows to talk to sshd on FreeBSD. It's >> always >> a >> > shock when I have to copy my data to WIndows, and it takes 30 hours >> instead >> > of 3. >> > >> > Does anyone else ever see this slowness when copying files between >> FreeBSD >> > and Windows? >> > >> > Is Windows maybe capping the transfer speed when it talks to Unix? >> > _______________________________________________ >> > freebsd-questions@freebsd.org mailing list >> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> > To unsubscribe, send any mail to " >> freebsd-questions-unsubscribe@freebsd.org" >> > >> >> It is very certainly a known issue. Not that its specifics and >> origins are clearly known, but most of us stumble upon it >> sooner or later. You can usually achieve wire speed only >> between two OSes of a kind. TCP/IP optimizations are >> very important here: if they differ, performance plummets. >> Depends on a multitude of things from quality of NICs to >> weather in your area. I've never been able to get more >> than 70Mbit/s between FreeBSD and Windows XP. I >> always get 90-100Mbit/s between two BSDs or two Win's. >> >> As for your case, 1MB/s is a serious limit. What can you >> tell us about CPU load? Interrupts? Can you try this: >> http://www.psc.edu/networking/projects/hpn-ssh/ >> If you have both the XP and FreeBSD machines on the same internal network, why not enable file sharing on the XP box and use Samba Client on the freeBSD box. I have found SMB to be a lot faster as it is running as a service on XP. Rob