From owner-freebsd-net Wed Nov 28 17:13:54 2001 Delivered-To: freebsd-net@freebsd.org Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by hub.freebsd.org (Postfix) with ESMTP id 011CF37B416; Wed, 28 Nov 2001 17:13:51 -0800 (PST) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.11.4/8.11.4) id fAT1DnH04474; Wed, 28 Nov 2001 20:13:49 -0500 (EST) (envelope-from wollman) Date: Wed, 28 Nov 2001 20:13:49 -0500 (EST) From: Garrett Wollman Message-Id: <200111290113.fAT1DnH04474@khavrinen.lcs.mit.edu> To: Greg Lehey Cc: net@FreeBSD.org Subject: Re: FreeBSD performing worse than Linux? In-Reply-To: <20011129105321.C74413@monorchid.lemis.com> References: <20011128102241.6887B380A@overcee.netplex.com.au> <20011128112006.195983808@overcee.netplex.com.au> <20011129105321.C74413@monorchid.lemis.com> Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org [Redirecting to a more-appropriate mailing-list.] < said: > I spoke to him on the phone this morning. He replaced it with a 3Com > card, but there was no significant difference in performance. He's > currently upgrading to -STABLE, which seems to be a sensible thing to > do, so we should wait to see what happens then. We appear to have some big TCP problems in -stable (and presumably in -current as well). Anyone wishing to look at traces is welcome to retrieve http://khavrinen.lcs.mit.edu/test{,2,3,4}.tcpd and take a look. Warning: these files are very, very large: 95M test.tcpd 108M test2.tcpd 107M test3.tcpd 15M test4.tcpd Each trace shows a single large file transfer from a 4.4-stable machine to my -current desktop over a local-area network. test4 was aborted about 10% into the transfer so that you have a chance at looking at the whole thing in xplot. There are multiple pathologies visible in the results, but a good place to start would be around :56.44 in test4. -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message