From owner-freebsd-current@FreeBSD.ORG Sun Sep 18 19:33:10 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org 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 A63D616A41F for ; Sun, 18 Sep 2005 19:33:10 +0000 (GMT) (envelope-from caelian@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.197]) by mx1.FreeBSD.org (Postfix) with ESMTP id 85F7F43D48 for ; Sun, 18 Sep 2005 19:33:09 +0000 (GMT) (envelope-from caelian@gmail.com) Received: by zproxy.gmail.com with SMTP id z31so56235nzd for ; Sun, 18 Sep 2005 12:33:09 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:subject:from:to:cc:in-reply-to:references:content-type:date:message-id:mime-version:x-mailer:content-transfer-encoding; b=brh3UjMkFpxO84e8vSJaFnbvZneggo/dDNEJThqnZ6CEKY391DZgtQ9vuBugdXGWaEN//sZWtuIgsKDtE4aKBHNf6gxemyBLmpHWp87TJFS/DpU1pu6mdzZ3ic1Oxzi8YECs9qfNrDZCIABFTJqH3+prLhOFxKmCCzRLwH+dKNQ= Received: by 10.36.57.19 with SMTP id f19mr1987030nza; Sun, 18 Sep 2005 12:33:09 -0700 (PDT) Received: from synergy.odyssey.homeunix.org ( [68.190.230.198]) by mx.gmail.com with ESMTP id c12sm796460nzc.2005.09.18.12.33.07; Sun, 18 Sep 2005 12:33:08 -0700 (PDT) From: Pascal Hofstee To: "Roger O. Svenning" In-Reply-To: <000c01c5bc85$445b3ef0$6401a8c0@aw001> References: <000c01c5bc85$445b3ef0$6401a8c0@aw001> Content-Type: text/plain Date: Sun, 18 Sep 2005 12:33:06 -0700 Message-Id: <1127071986.1061.7.camel@synergy.odyssey.homeunix.org> Mime-Version: 1.0 X-Mailer: Evolution 2.4.0 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: A question about Intel HyperThreading 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: Sun, 18 Sep 2005 19:33:10 -0000 On Sun, 2005-09-18 at 21:14 +0200, Roger O. Svenning wrote: [snip] > The nwserver service is not multithreaded and I'm guessing it's using > only one of the logical cpus, but are there actually processing power > sitting idle here or is it just a top-weirdness? > > Needless to say I want the nwserver process to be able to use all > processing power available in the cpu. I assume you checked for this already .. but just to be on the safe side FreeBSD disables HTT on default because of the potential security issues related to the technology. So unless you explicitely allow HTT FreeBSD won't use the HTT-capabilities of the CPU. Can you make sure that HTT is indeed allowed ? sysctl machdep.hyperthreading_allowed -- Pascal Hofstee