From owner-freebsd-current@FreeBSD.ORG Thu Jun 12 10:45:36 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA48237B401; Thu, 12 Jun 2003 10:45:36 -0700 (PDT) Received: from smtp-relay1.barrysworld.com (ns1.barrysworld.com [213.221.172.238]) by mx1.FreeBSD.org (Postfix) with ESMTP id AC4E943FA3; Thu, 12 Jun 2003 10:45:35 -0700 (PDT) (envelope-from killing@barrysworld.com) Received: from [213.221.181.50] (helo=barrysworld.com) by smtp-relay1.barrysworld.com with esmtp (Exim 4.12) id 19QW7r-0002gD-00; Thu, 12 Jun 2003 18:44:39 +0100 Received: from steven [193.123.241.40] by barrysworld.com with ESMTP (SMTPD32-7.15) id ACCA25A101A8; Thu, 12 Jun 2003 18:47:54 +0100 Message-ID: <032501c3310a$b16beca0$7b07000a@int.mediasurface.com> From: "Killing" To: , References: Date: Thu, 12 Jun 2003 18:47:28 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Subject: Re: SMP in 5.1 cant deactivate hyperthreading X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Thu, 12 Jun 2003 17:45:37 -0000 > Well, hyperthreading can be disabled via a kernel directive, right? >From what I've seen that was removed between 5.0 and 5.1 correct me if Im wrong. > > Which ever it needs someone to pick it up ASAP dont you think? > > Really? What's the hurry? FreeBSD 5.x isn't even bootable/installable > on a number of SMP machines yet (ex. Dell Poweredge 6350). I suppose the hurry is that basic utils that we use day to day like top and vmstat to monitor machine load cannot be trusted to give accurate info. Yes 5.X is still new tech and may not run on all machines but on the ones which it does ( and it runs very well here ) basic tools are required. If it doesn't run on a machine your under know false impressions, if however you users complain of performance issues and you look @ top and it says 50% idle and its really 0% idle its a different matter. Steve / K