From owner-freebsd-hackers Tue Jan 1 5:27:51 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from swan.prod.itd.earthlink.net (swan.mail.pas.earthlink.net [207.217.120.123]) by hub.freebsd.org (Postfix) with ESMTP id 2118D37B43A for ; Tue, 1 Jan 2002 05:27:46 -0800 (PST) Received: from pool0063.cvx40-bradley.dialup.earthlink.net ([216.244.42.63] helo=mindspring.com) by swan.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16LOx8-0003tU-00; Tue, 01 Jan 2002 05:27:39 -0800 Message-ID: <3C31B94A.15BDD42F@mindspring.com> Date: Tue, 01 Jan 2002 05:27:38 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: "M. Warner Losh" Cc: dillon@apollo.backplane.com, dg@root.com, freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD performing worse than Linux? References: <200201010043.g010h0i36281@apollo.backplane.com> <20011231221601.A54679@nexus.root.com> <200201010636.g016aLC37133@apollo.backplane.com> <20020101.023054.77323162.imp@village.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG "M. Warner Losh" wrote: > In message: <200201010636.g016aLC37133@apollo.backplane.com> > Matthew Dillon writes: > : I think that has been fixed. Try it. It doesn't lag for me. The > : turn-around echo of the keystroke should be pushed out instantly. > > Yes. Keep in mind that you only need to enable this when you have > unacked data. Otherwise, NODELAY doesn't buy you anything. > > I routinely go over non-NODELAY links and haven't seen a huge problem > except when modems were involved that liked to freak out. My experience agrees with David's. It makes sense to set TCP_NODELAY on the client, still, if the payload is still small enough after encryption. On the server side, it makes less sense. The server side TCP_NODELAY is the problem in this case, since it is the client, not the server, which is on the slow side of a USB dongle, FWIW. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message