From owner-freebsd-net@FreeBSD.ORG Thu Jan 15 21:59:13 2009 Return-Path: Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6B1FA1065673 for ; Thu, 15 Jan 2009 21:59:13 +0000 (UTC) (envelope-from jostb2345@yahoo.de) Received: from web27006.mail.ukl.yahoo.com (web27006.mail.ukl.yahoo.com [217.146.177.6]) by mx1.freebsd.org (Postfix) with SMTP id B48478FC1D for ; Thu, 15 Jan 2009 21:59:12 +0000 (UTC) (envelope-from jostb2345@yahoo.de) Received: (qmail 44780 invoked by uid 60001); 15 Jan 2009 21:32:31 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.de; h=X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=loMEOXclkw9n/7/24VN3V978/xELpXGGJgUUL3tITBgtLnnD1hO6wHyESFW2fKi+D4fvohLVtSib8bVPr0PHhbaFk7ntRwgbbKtEFRTfVSTM7OYhd17tqKZei6Vbkzz9074gjJMbXvcQO8b193n4UxHTq5zYsvARE/BeFO7YOug=; X-YMail-OSG: CopQfwoVM1ny.FihAOIyHu54ThAuNv8WC3gSS3AyRt6n88RxMstAmkhoHlpMOBY3cpy2lHqK2ohCShkp77MtCGQQDwTLxK0dcv21wrzl3Vugm7qNwuM9XGAWb3woe7NduAVRYp.QwnJjCF8RnEpxpziO3g-- Received: from [85.179.13.141] by web27006.mail.ukl.yahoo.com via HTTP; Thu, 15 Jan 2009 21:32:31 GMT X-Mailer: YahooMailWebService/0.7.260.1 Date: Thu, 15 Jan 2009 21:32:31 +0000 (GMT) From: Jost Boekemeier To: vwe@FreeBSD.org, freebsd-bugs@FreeBSD.org, freebsd-net@FreeBSD.org In-Reply-To: <200901142324.n0ENOvTK040197@freefall.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Message-ID: <577907.44747.qm@web27006.mail.ukl.yahoo.com> Cc: Subject: Re: kern/96268: [socket] TCP socket performance drops by 3000% if packets are split at the first byte X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: jostb2345@yahoo.de List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Jan 2009 21:59:13 -0000 Hi, from my point of view this issue can be closed.=20 TCP write/write/read sequences are bad on any operating system, it's just t= hat other OS are a little bit smarter. -- I think Jon Nagle has had a propo= sal to fix/remove this unconditional delay, but I don't know if it has been= implemented. Furthermore this problem has been fixed on application level. And I think P= atrick van Staveren maintains a FreeBSD port which uses unix domain- instea= d of TCP socket communication. Regards, Jost B=F6kemeier =0A=0A=0A