From owner-freebsd-stable@FreeBSD.ORG Wed May 3 18:44:44 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 9E07F16A410 for ; Wed, 3 May 2006 18:44:44 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [192.147.25.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 408AA43D45 for ; Wed, 3 May 2006 18:44:42 +0000 (GMT) (envelope-from ler@lerctr.org) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=lerami; d=lerctr.org; b=Rz91Q1CGprqZtIvB/tT2xxsohV/6HR3lXPfmz/e7jB4zBXZnIjHRSjjC8WMCBMwsMMzBP3RUFWIudm+R0Opq8YcmYjlNQ9RnZr+a+KOwhFS1qC9S2ga1r+19UC8KRvrgeTmfdmlEZhnxyZPUk8Wv0J+l/laweI4g3gr9+Ht9EoU=; Received: from 64-132-13-2.gen.twtelecom.net ([64.132.13.2]:60014 helo=LROSENMAC8010P) by thebighonker.lerctr.org with esmtpsa (TLSv1:RC4-MD5:128) (Exim 4.62 (FreeBSD)) (envelope-from ) id 1FbML1-000FtD-3N; Wed, 03 May 2006 13:44:41 -0500 From: "Larry Rosenman" To: "'Spartak Radchenko'" , "'Marc G. Fournier'" Date: Wed, 3 May 2006 13:44:02 -0500 Message-ID: <009401c66ee1$8c706170$0202fea9@aus.pervasive.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 thread-index: AcZu4V/DgTKiXzzORsGlpNzeVbM4uAAAAvVA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 In-Reply-To: <20060503184223.GB2198@oberon.aif.ru> X-Spam-Score: -4.4 (----) X-LERCTR-Spam-Score: -4.4 (----) X-Spam-Report: (-4.4 points, 5.0 required) ALL_TRUSTED=-1.8 BAYES_00=-2.599 DK_POLICY_SIGNALL=0.001 X-LERCTR-Spam-Report: (-4.4 points, 5.0 required) ALL_TRUSTED=-1.8 BAYES_00=-2.599 DK_POLICY_SIGNALL=0.001 DomainKey-Status: no signature Cc: freebsd-stable@freebsd.org Subject: RE: Hyperthreading in 6.x ... still frowned upon? 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: Wed, 03 May 2006 18:44:45 -0000 Spartak Radchenko wrote: > On Wed, May 03, 2006 at 11:42:18AM -0300, Marc G. Fournier wrote: >> >> In 4.x, it was a 'shut it off' sort of deal .. my new amd64 don't >> appear to have it enabled, but my older i386 server that I just >> upgraded to 6.x does: > > I am not sure I understood your problem correctly... Do you want > to enable hyperthreading on amd64? But they have no such thing. > Intel only. you do know that EM64T Xeons *DO* have hyperthreading, and (can) run an amd64 kernel? $ sysctl hw hw.machine: amd64 hw.model: Intel(R) Xeon(TM) CPU 3.00GHz hw.ncpu: 4 -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893