From owner-freebsd-current@FreeBSD.ORG Tue Jan 20 11:25:16 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CD82A1065670 for ; Tue, 20 Jan 2009 11:25:16 +0000 (UTC) (envelope-from christoph.mallon@gmx.de) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx1.freebsd.org (Postfix) with SMTP id 1E6B18FC16 for ; Tue, 20 Jan 2009 11:25:15 +0000 (UTC) (envelope-from christoph.mallon@gmx.de) Received: (qmail invoked by alias); 20 Jan 2009 11:25:14 -0000 Received: from p54A3DE90.dip.t-dialin.net (EHLO tron.homeunix.org) [84.163.222.144] by mail.gmx.net (mp005) with SMTP; 20 Jan 2009 12:25:14 +0100 X-Authenticated: #1673122 X-Provags-ID: V01U2FsdGVkX18P7xRUwfAPN6S11JEOPsQbahm3gMLKcq+xFLEy2Z K2JpqSOVhveD7j Message-ID: <4975B49A.5060205@gmx.de> Date: Tue, 20 Jan 2009 12:25:14 +0100 From: Christoph Mallon User-Agent: Thunderbird 2.0.0.19 (X11/20090103) MIME-Version: 1.0 To: barney_cordoba@yahoo.com References: <844890.15272.qm@web63902.mail.re1.yahoo.com> In-Reply-To: <844890.15272.qm@web63902.mail.re1.yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-FuHaFi: 0.74 Cc: freebsd-current@freebsd.org Subject: Re: Running on only some cores 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: Tue, 20 Jan 2009 11:25:17 -0000 Barney Cordoba schrieb: > Can FreeBSD be configured to only run on N cores? So for example, if I have an 8 core system, can it be configured in loader.conf or through a simple hack to only run on 2 cores? > > We're testing various configs, and its not terribly convenient to keep swapping out CPUs. man 4 smp look for machdep.hlt_cpus