From owner-freebsd-smp@FreeBSD.ORG Tue Mar 10 16:28:21 2009 Return-Path: Delivered-To: freebsd-smp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6140C1065677 for ; Tue, 10 Mar 2009 16:28:21 +0000 (UTC) (envelope-from robert@heron.pl) Received: from sys.heron.com.pl (mail.heron.pl [89.174.255.17]) by mx1.freebsd.org (Postfix) with ESMTP id 20FDD8FC1C for ; Tue, 10 Mar 2009 16:28:20 +0000 (UTC) (envelope-from robert@heron.pl) Received: from [89.174.255.14] by sys.heron.com.pl with esmtpa (Exim 4.69) (envelope-from ) id 1Lh4oT-000EgS-3S; Tue, 10 Mar 2009 17:28:17 +0100 Message-Id: <8CFE3F10-2504-45DB-9ED7-BDF354BC10FF@heron.pl> From: Robert Heron To: Lucas Holt In-Reply-To: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Date: Tue, 10 Mar 2009 17:28:18 +0100 References: <2E7DD8D9-FABA-4A30-9118-948D26DB26AE@heron.pl> X-Mailer: Apple Mail (2.930.3) Cc: freebsd-smp@freebsd.org Subject: Re: only one logical CPU used in Xeon X-BeenThere: freebsd-smp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD SMP implementation group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Mar 2009 16:28:21 -0000 Hyperthreading is enabled in BIOS, but the variable: machdep.hyperthreading_allowed is '0' by default in FreeBSD 6.2R :((( I just changed it now to '1' and all cores in all CPUs started to work :))) Very simple change and so much power more :) Thanks a lot for this hint!! Regards, Robert On Mar 10, 2009, at 3:19 PM, Lucas Holt wrote: > Have you tried the hyperthreading setting? > > machdep.hyperthreading_allowed=1 > (put that in /etc/sysctl.conf) > > On Mar 10, 2009, at 6:40 AM, Robert Heron wrote: > >> Hi, >> >> I have FreeBSD 6.2R running on Intel SE7501HG2 motherboard with two >> Xeon installed. >> System detects 2 CPUs with 2 cores in each of them (total 4 cores) >> but it uses only one core in each Xeon (total 2 of 4 cores are used >> only). >> I see it in the 'top'. I tried the same hardware on FreeBSD 7.1R >> and this OS uses all of the detected cores. >> >> What should I do FreeBSD 6.2R to use all of the available cores? >> I cannot upgrade it to 7.x, must use 6.x >> >> Regards, >> Robert Heron >> >> _______________________________________________ >> freebsd-smp@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-smp >> To unsubscribe, send any mail to "freebsd-smp- >> unsubscribe@freebsd.org" > > > > Lucas Holt > Luke@FoolishGames.com > ________________________________________________________ > MidnightBSD.org (Free OS) > JustJournal.com (Free blogging) > >