From owner-freebsd-stable@FreeBSD.ORG Tue May 12 20:42:55 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DAE321065675 for ; Tue, 12 May 2009 20:42:55 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id 7F0C68FC2A for ; Tue, 12 May 2009 20:42:55 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [211.166.10.233]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 7AB695C06E for ; Wed, 13 May 2009 04:42:54 +0800 (CST) Received: from localhost (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id 43DF255D166D; Wed, 13 May 2009 04:42:54 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by localhost (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with ESMTP id CYFSXK7mao3z; Wed, 13 May 2009 04:41:54 +0800 (CST) Received: from charlie.delphij.net (adsl-76-237-33-62.dsl.pltn13.sbcglobal.net [76.237.33.62]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 6281F55D166B; Wed, 13 May 2009 04:41:42 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=uVxYgqdGXDyYcKgE+zq6OUFftE5+XEGuXLY7llFNKj1tTD1FObh3SQbg7YOLeHtiK e0w52qQfFU4GUYSJsM2tg== Message-ID: <4A09DEF1.2010202@delphij.net> Date: Tue, 12 May 2009 13:41:21 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.21 (X11/20090408) MIME-Version: 1.0 To: David Samms References: In-Reply-To: X-Enigmail-Version: 0.95.7 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: TCP differences in 7.2 vs 7.1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 May 2009 20:42:56 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi David, David Samms wrote: > After upgrading to 7.2 (amd64) some customers complained of very poor > bandwidth. Upon investigation all the effected customers were ATT DSL > clients located all over the USA, not in a single city, nor were other > ISPs effected. The server is a Supermicro with dual (quad core) > processors with a single Intel fxp network card on a 100mbit connection. Could you please try if this would help: sysctl net.inet.tcp.tso=0 Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBSD) iEYEARECAAYFAkoJ3vAACgkQi+vbBBjt66CKqQCgwPkg1IZnI61Q1+PWfr5sOvVm n5IAnAzbI5HQXQqyPg+DmzHvCNhzhelI =oHGO -----END PGP SIGNATURE-----