From owner-freebsd-questions@FreeBSD.ORG Sat Feb 5 19:22:19 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 6F5F016A4CE for ; Sat, 5 Feb 2005 19:22:19 +0000 (GMT) Received: from whisk.dreamhost.com (whisk.dreamhost.com [205.196.208.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id 42F3F43D1D for ; Sat, 5 Feb 2005 19:22:19 +0000 (GMT) (envelope-from lists@tntluoma.com) Received: from [68.243.8.161] (015-989-672.area7.spcsdns.net [68.243.8.161]) by whisk.dreamhost.com (Postfix) with ESMTP id 196A2175106; Sat, 5 Feb 2005 11:22:15 -0800 (PST) Mime-Version: 1.0 X-Mailer: SnapperMail 2.2.2.01 by Snapperfish, www.snappermail.com To: "J.D. Bronson" , Message-ID: <4365-SnapperMsgD246FC56BE2ACD69@[68.243.8.161]> In-Reply-To: <6.2.1.2.2.20050204165424.00bf3c28@cheyenne.wixb.com> References: <6.2.1.2.2.20050204165424.00bf3c28@cheyenne.wixb.com> From: "Timothy J. Luoma" Date: Sat, 05 Feb 2005 13:55:44 -0500 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Subject: Re: 5.3 and SMP(HTT) 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: Sat, 05 Feb 2005 19:22:19 -0000 ...... Original Message ....... On Fri, 04 Feb 2005 16:56:39 -0600 "J.D. Bronson" wrote: >(there is only 1 CPU in this machine and NO way to add another) but I do >want to get any benefit from HTT - presuming a benefit actually exists. > the general concensus is that HTT does NOT give a benefit. There have been other conversations about this within the past month or so. As I recall, there is a trade off in "waiting" which has to happen. HTT is something of a hack to deal with a long instruction pipeline in the new P4.