From owner-freebsd-net@FreeBSD.ORG Mon Feb 23 19:23:52 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 59C2F16A4CE for ; Mon, 23 Feb 2004 19:23:52 -0800 (PST) Received: from segfault.monkeys.com (segfault.monkeys.com [66.60.159.24]) by mx1.FreeBSD.org (Postfix) with ESMTP id 316AB43D2D for ; Mon, 23 Feb 2004 19:23:50 -0800 (PST) (envelope-from rfg@monkeys.com) Received: from monkeys.com (unknown [127.0.0.1]) by segfault.monkeys.com (Postfix) with ESMTP id 92CB842031 for ; Mon, 23 Feb 2004 19:23:49 -0800 (PST) To: freebsd-net@freebsd.org Date: Mon, 23 Feb 2004 19:23:49 -0800 Message-ID: <46780.1077593029@monkeys.com> From: "Ronald F. Guilmette" Subject: default socket receive buffer size, net.inet.tcp.recvspace (?) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Feb 2004 03:23:52 -0000 I have just now found out that the kernel default value for net.inet.tcp.recvspace, i.e. the default amount of receive buffer space associated with a new socket is set to 56kB, at least on the specific version of FreeBSD (4.7) that I'm running. Just curious: why? 56kB seems like a somewhat odd number to pick for the default. Why not 32kB or else 64kB?