From owner-freebsd-current@FreeBSD.ORG Fri Apr 13 14:35:53 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7F12616A401; Fri, 13 Apr 2007 14:35:53 +0000 (UTC) (envelope-from craig@xfoil.gank.org) Received: from ion.gank.org (ion.gank.org [69.55.238.164]) by mx1.freebsd.org (Postfix) with ESMTP id 648BB13C4B9; Fri, 13 Apr 2007 14:35:51 +0000 (UTC) (envelope-from craig@xfoil.gank.org) Received: by ion.gank.org (Postfix, from userid 1001) id 22905110D6; Fri, 13 Apr 2007 09:35:51 -0500 (CDT) Date: Fri, 13 Apr 2007 09:35:50 -0500 From: Craig Boston To: Bruce Evans Message-ID: <20070413143550.GA19881@nowhere> References: <86k5wo55s0.fsf@dwp.des.no> <20070407203411.GJ8831@cicely12.cicely.de> <86wt0n3mxv.fsf@dwp.des.no> <20070411214911.GA38351@VARK.MIT.EDU> <20070412073605.GB834@turion.vk2pj.dyndns.org> <86ps6aht1i.fsf@dwp.des.no> <20070412160603.GB92079@keira.kiwi-computer.com> <20070412185159.GB95302@nowhere> <86slb5e33a.fsf@dwp.des.no> <20070413164840.V31079@besplex.bde.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070413164840.V31079@besplex.bde.org> User-Agent: Mutt/1.4.2.2i Cc: freebsd-fs@freebsd.org, Dag-Erling Sm?rgrav , "Rick C. Petty" , freebsd-current@freebsd.org Subject: Re: ZFS committed to the FreeBSD base. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Apr 2007 14:35:53 -0000 On Fri, Apr 13, 2007 at 05:34:56PM +1000, Bruce Evans wrote: > Doesn't everyone who uses atomic operations knows that they are expensive? > :) Yes, though hopefully they should at least be faster than using a mutex, though for cmpxchg8b it sounds like that may not necessarily be the case... Craig