From owner-freebsd-stable@FreeBSD.ORG Sun Mar 30 20:33:45 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8BC7A603 for ; Sun, 30 Mar 2014 20:33:45 +0000 (UTC) Received: from thyme.infocus-llc.com (server.infocus-llc.com [206.156.254.44]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "*.infocus-llc.com", Issuer "*.infocus-llc.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 5A2D28AA for ; Sun, 30 Mar 2014 20:33:44 +0000 (UTC) Received: from draco.over-yonder.net (c-75-65-60-66.hsd1.ms.comcast.net [75.65.60.66]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by thyme.infocus-llc.com (Postfix) with ESMTPSA id 45A8D37B50F; Sun, 30 Mar 2014 15:33:37 -0500 (CDT) Received: by draco.over-yonder.net (Postfix, from userid 100) id 3fxpRN44BSzSMR; Sun, 30 Mar 2014 15:33:36 -0500 (CDT) Date: Sun, 30 Mar 2014 15:33:36 -0500 From: "Matthew D. Fuller" To: Chris H Subject: Re: where's the full copy of dmesg(8)? Message-ID: <20140330203336.GG65094@over-yonder.net> References: <53378975.1000905@egr.msu.edu> <9da21869740371e51b0e684f493676ef.authenticated@ultimatedns.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9da21869740371e51b0e684f493676ef.authenticated@ultimatedns.net> X-Editor: vi X-OS: FreeBSD User-Agent: Mutt/1.5.23 (2014-03-12) X-Virus-Scanned: clamav-milter 0.98.1 at thyme.infocus-llc.com X-Virus-Status: Clean Cc: Adam McDougall , freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Mar 2014 20:33:45 -0000 On Sun, Mar 30, 2014 at 01:28:50AM -0700 I heard the voice of Chris H, and lo! it spake thus: > > Interesting. Given that every system I run has (default) value of > 65536. Can you, or anyone suggest what the correct, of better value > should be? Bigger :p On most of my systems, I've got options MSGBUF_SIZE=163840 in the kernel config. It's been carried around everywhere for many years. Where'd I get it from? I'm not sure. Before r56838 the default was 8k, so I'd guess I doubled it to 16k, then hit a time when it overflowed again and just lazily *10'd it. Even back with 256 meg systems, I didn't feel too bad about "wasting" 160k. -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.