From owner-freebsd-stable@FreeBSD.ORG Sun Apr 30 10:31:15 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 0F44816A400 for ; Sun, 30 Apr 2006 10:31:15 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail13.syd.optusnet.com.au (mail13.syd.optusnet.com.au [211.29.132.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6268943D49 for ; Sun, 30 Apr 2006 10:31:14 +0000 (GMT) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (c220-239-19-236.belrs4.nsw.optusnet.com.au [220.239.19.236]) by mail13.syd.optusnet.com.au (8.12.11/8.12.11) with ESMTP id k3UAVCWT028663 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Sun, 30 Apr 2006 20:31:12 +1000 Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by turion.vk2pj.dyndns.org (8.13.6/8.13.6) with ESMTP id k3UAVBHg002848; Sun, 30 Apr 2006 20:31:11 +1000 (EST) (envelope-from peter@turion.vk2pj.dyndns.org) Received: (from peter@localhost) by turion.vk2pj.dyndns.org (8.13.6/8.13.6/Submit) id k3UAVBLX002847; Sun, 30 Apr 2006 20:31:11 +1000 (EST) (envelope-from peter) Date: Sun, 30 Apr 2006 20:31:11 +1000 From: Peter Jeremy To: Chris Message-ID: <20060430103111.GC980@turion.vk2pj.dyndns.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> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3aaaa3a0604300205l64f19573u250a727e4c83f499@mail.gmail.com> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.11 Cc: freebsd-stable@freebsd.org 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 10:31:15 -0000 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. -- Peter Jeremy