From owner-freebsd-hackers Fri Jul 13 11:19:16 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from avocet.mail.pas.earthlink.net (avocet.mail.pas.earthlink.net [207.217.121.50]) by hub.freebsd.org (Postfix) with ESMTP id 90B5F37B401 for ; Fri, 13 Jul 2001 11:19:13 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from mindspring.com (dialup-209.245.130.157.Dial1.SanJose1.Level3.net [209.245.130.157]) by avocet.mail.pas.earthlink.net (EL-8_9_3_3/8.9.3) with ESMTP id LAA27665; Fri, 13 Jul 2001 11:19:05 -0700 (PDT) Message-ID: <3B4F3BBD.BFCA3011@mindspring.com> Date: Fri, 13 Jul 2001 11:19:41 -0700 From: Terry Lambert Reply-To: tlambert2@mindspring.com X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Mike Silbersack Cc: Alfred Perlstein , Matt Dillon , Leo Bicknell , hackers@FreeBSD.ORG Subject: Re: Network performance tuning. References: <20010712212051.K21859-100000@achilles.silby.com> 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 Mike Silbersack wrote: > > Actually, we can shrink the window, but that's strongly discouraged > > by a lot of papers/books. > > I doubt you really need to shrink the window ever - the fact that you've > hit the mbuf limit basically enforces that limit. And, if we're only > upping the limit based on actual ACKing of data, there's no (major) DoS > issue. Ask Julian about this. He has some very smart code in the InterJet; I'm not sure it ever made it into production, or even out of Whistle. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message