From owner-freebsd-questions@FreeBSD.ORG Sun Jul 6 11:03:10 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6B86F1065671 for ; Sun, 6 Jul 2008 11:03:10 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D93A48FC12; Sun, 6 Jul 2008 11:03:08 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <4870A66B.9090807@FreeBSD.org> Date: Sun, 06 Jul 2008 13:03:07 +0200 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421) MIME-Version: 1.0 To: "P.Moulin" References: <48709359.3010400@caliopea.com> In-Reply-To: <48709359.3010400@caliopea.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: linux_base and SMP support ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jul 2008 11:03:10 -0000 P.Moulin wrote: > > Hi there. > > I recently added linux_base-fc4 on a host, to run linux > setiathome enhanced versions (aka crunchers). > > The problem is that on multicore engines (core 2 duo, pentium D, etc...) > where before there was 2 freebsd-crunchers on 2 differents core, > now, with linux-crunchers, the 2 crunchers are sharing only 1 core. > > Can someone tell me what's wrong with this ? Have I missed something ? > Is it an incompatibility from linux_base with smp hardware ? > > This problem seems to affects only freebsd 6.x, not the 7 branch. > My kernels are all compiled with SMP support. > > I'm working for years with freebsd, but consider I'm really a newbee > with linux. How do you know they are sharing one core, and what do you mean by "2 crunchers"? Are they separate processes, or a single threaded process? Kris