From owner-freebsd-stable@FreeBSD.ORG Sun Apr 30 16:07:00 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FC5016A40E for ; Sun, 30 Apr 2006 16:07:00 +0000 (UTC) (envelope-from dom@helenmarks.co.uk) Received: from mail.goodforbusiness.co.uk (mail.goodforbusiness.co.uk [83.223.104.90]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4C15643D49 for ; Sun, 30 Apr 2006 16:06:59 +0000 (GMT) (envelope-from dom@helenmarks.co.uk) Received: from localhost (localhost [127.0.0.1]) by mail.goodforbusiness.co.uk (Postfix) with ESMTP id 750EE1146B for ; Sun, 30 Apr 2006 17:06:58 +0100 (BST) Received: from mail.goodforbusiness.co.uk ([127.0.0.1]) by localhost (mail.goodforbusiness.co.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 21901-01 for ; Sun, 30 Apr 2006 17:06:57 +0100 (BST) Received: from mail.helenmarks.co.uk (unknown [192.168.100.1]) by mail.goodforbusiness.co.uk (Postfix) with ESMTP id 6263911462 for ; Sun, 30 Apr 2006 17:06:57 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mail.helenmarks.co.uk (Postfix) with ESMTP id 1558817031; Sun, 30 Apr 2006 17:06:57 +0100 (BST) X-Virus-Scanned: amavisd-new at helenmarks.co.uk Received: from mail.helenmarks.co.uk ([127.0.0.1]) by localhost (mail.helenmarks.co.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2A14cMRpYbTt; Sun, 30 Apr 2006 17:06:52 +0100 (BST) Received: from [192.168.15.3] (egg.helenmarks.co.uk [192.168.15.3]) by mail.helenmarks.co.uk (Postfix) with ESMTP id 932AE17030 for ; Sun, 30 Apr 2006 17:06:52 +0100 (BST) Message-ID: <4454E0C9.7030807@helenmarks.co.uk> Date: Sun, 30 Apr 2006 17:07:37 +0100 From: Dominic Marks User-Agent: Thunderbird 1.5 (X11/20060403) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <20060427160536.M96305@atlantis.atlantis.dp.ua> <20060427181226.GA66431@xor.obsecurity.org> <20060428122448.K57436@atlantis.atlantis.dp.ua> <20060428182818.GA10410@xor.obsecurity.org> <3aaaa3a0604300205l64f19573u250a727e4c83f499@mail.gmail.com> <20060430103111.GC980@turion.vk2pj.dyndns.org> <4454B017.5080706@helenmarks.co.uk> In-Reply-To: <4454B017.5080706@helenmarks.co.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: mail.goodforbusiness.co.uk Subject: Re: RELENG_4 -> 5 -> 6: significant performance regression X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 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 Apr 2006 16:07:02 -0000 Dominic Marks wrote: > Peter Jeremy wrote: >> On Sun, 2006-Apr-30 10:05:40 +0100, Chris wrote: >>> Does 'makeoptions DEBUG=-g' add any kind of performance hit or >>> overhead as I noticed it wasnt default in 5.4 but is in 6.0. >> >> No. It just means that a debug kernel is built in addition to the >> normal kernel. The major benefit is that if you do get a panic, >> you can debug it without needing to rebuild the kernel. >> > > I've often thought that the default should be for this to be > on instead of off. Does anyone know why the current state is > so? I suppose it incurs a small amount of additional disc > space but the benefits are considerable for everyone involved. Clarifying what I was getting at (it does default to on) I meant that it has to be turned on with an option not turned off. > Cheers, > Dominic > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"