From owner-freebsd-questions@FreeBSD.ORG Tue Mar 29 23:41:25 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 17E7216A4CE for ; Tue, 29 Mar 2005 23:41:25 +0000 (GMT) Received: from skipjack.no-such-agency.net (skipjack.no-such-agency.net [64.142.114.146]) by mx1.FreeBSD.org (Postfix) with ESMTP id C226C43D45 for ; Tue, 29 Mar 2005 23:41:24 +0000 (GMT) (envelope-from jpp@cloudview.com) Received: from skipjack.no-such-agency.net (localhost [127.0.0.1]) by skipjack.no-such-agency.net (Postfix) with ESMTP id 8130A34DA10; Tue, 29 Mar 2005 15:41:24 -0800 (PST) Received: from [192.168.2.120] (blackhole.no-such-agency.net [64.142.103.196]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by skipjack.no-such-agency.net (Postfix) with ESMTP id 5497934DA0F; Tue, 29 Mar 2005 15:41:24 -0800 (PST) Message-ID: <4249E7A3.40300@cloudview.com> Date: Tue, 29 Mar 2005 15:41:23 -0800 From: John Pettitt Organization: CloudView Photographic User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: em1897@aol.com References: 6667 <20050328142522.40982.qmail@web90210.mail.scd.yahoo.com> <1802825135.20050328164920@wanadoo.fr> <8C701C5A7BE6FEE-4B8-3F7A1@mblk-d50.sysops.aol.com> <1873266905.20050328201452@wanadoo.fr> <8C701F3D30DD9E0-418-84A@mblk-d49.sysops.aol.com> <166745080.20050329000307@wanadoo.fr> <8C701FD99D77BA3-418-1271@mblk-d49.sysops.aol.com> <336611005.20050329064359@wanadoo.fr> <8C7029BC7FFDCF4-FA4-65B4@mblk-r21.sysops.aol.com> <738586666.20050329210240@wanadoo.fr> <8C702B0415B9B8E-E8C-82C8@mblk-d21.sysops.aol.com> <347498369.20050329222031@wanadoo.fr> <8C702C956A86CA7-C38-9C1F@mblk-d12.sysops.aol.com> In-Reply-To: <8C702C956A86CA7-C38-9C1F@mblk-d12.sysops.aol.com> X-Enigmail-Version: 0.90.1.1 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-AV-Checked: by skipjack cc: freebsd-questions@freebsd.org Subject: Re: hyper threading. X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Mar 2005 23:41:25 -0000 em1897@aol.com wrote: > > The principles of "modern" controllers are surprisingly similar to those > of "old" controllers. The biggest change is that the PC world is only > now discovering what mainframe designers knew 40 years ago. > > PC Designers knew it 20 years ago. When I designed the Specialix SI serial boards (for 286/386 Xenix boxes) they had interrupt throttling built in (circa 1986/7). John