From owner-freebsd-net@FreeBSD.ORG Sat Nov 29 21:08:43 2008 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 3924E1065670 for ; Sat, 29 Nov 2008 21:08:43 +0000 (UTC) (envelope-from dwmalone@maths.tcd.ie) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [IPv6:2001:770:10:300::86e2:510b]) by mx1.freebsd.org (Postfix) with SMTP id D5BE58FC1A for ; Sat, 29 Nov 2008 21:08:42 +0000 (UTC) (envelope-from dwmalone@maths.tcd.ie) Received: from localhost ([127.0.0.1] helo=maths.tcd.ie) by salmon.maths.tcd.ie with SMTP id ; 29 Nov 2008 21:08:41 +0000 (GMT) To: Venkat Venkatsubra In-reply-to: Your message of "Sat, 29 Nov 2008 13:01:52 PST." <865234.28813.qm@web58308.mail.re3.yahoo.com> Date: Sat, 29 Nov 2008 21:08:38 +0000 From: David Malone Message-ID: <200811292108.aa49379@salmon.maths.tcd.ie> Cc: Rui Paulo , freebsd-net@freebsd.org, Kevin Oberman Subject: Re: FreeBSD Window updates X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Nov 2008 21:08:43 -0000 > So the apps read buffer is possibly 32 times 2^8 = 8KB ? (32 being the > increment in each of those window updates.) I don't have the source code to hand, but that certainly sounds plausable. It is a tcp traffic generation tool, so 8K sounds like the sort of size it is likely to read in. David.