From owner-freebsd-current Mon Jul 15 03:31:01 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id DAA26950 for current-outgoing; Mon, 15 Jul 1996 03:31:01 -0700 (PDT) Received: from root.com (implode.root.com [198.145.90.17]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id DAA26938 for ; Mon, 15 Jul 1996 03:30:59 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by root.com (8.7.5/8.6.5) with SMTP id DAA02944; Mon, 15 Jul 1996 03:29:44 -0700 (PDT) Message-Id: <199607151029.DAA02944@root.com> X-Authentication-Warning: implode.root.com: Host localhost [127.0.0.1] didn't use HELO protocol To: "Bror 'Count' Heinola" cc: current@freebsd.org Subject: Re: FreeBSD with 100Mbit ethernet card? In-reply-to: Your message of "Mon, 15 Jul 1996 13:11:51 +0300." <199607151011.NAA08751@key.hole.fi> From: David Greenman Reply-To: davidg@root.com Date: Mon, 15 Jul 1996 03:29:43 -0700 Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >David Greenman taisi sanoa: >> >> Can you clarify about "can't transmit very fast"? I get excellent >> performance with the card myself - I'm using them in all of the machines >> I have here. > > Well, when I transfer files from an Ultra 1 with fast ethernet I > can 'put' them at over 5Mbytes/sec but when I 'get' them from > the BSD box they don't come faster than about 1.5Mbytes/sec. > > Did you see my mail about it in freebsd-hardware? I'm forwarding > it to you anyway... Just finished reading it. It's really hard to say where the performance problem is coming from. ping isn't a very good benchmark utility for a variety of reasons. For one, it tends to cause an excessively large number of collisions. ping -f is also sort of synchronous - from the manual page: -f Flood ping. Outputs packets as fast as they come back or one hundred times per second, whichever is more. For every This will likely defeat any streaming that could otherwise occur. I usually use 'ttcp' for benchmarking, but other TCP/UDP benchmarks utilities are also available (I think 'tcpblast' is in the ports tree). -DG David Greenman Core-team/Principal Architect, The FreeBSD Project