From owner-freebsd-stable@FreeBSD.ORG Mon Apr 25 14:04:37 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9117D1065670 for ; Mon, 25 Apr 2011 14:04:37 +0000 (UTC) (envelope-from freebsd@chillt.de) Received: from dd16434.kasserver.com (dd16434.kasserver.com [85.13.137.111]) by mx1.freebsd.org (Postfix) with ESMTP id 507BF8FC1A for ; Mon, 25 Apr 2011 14:04:36 +0000 (UTC) Received: from taiko.lan (ppp-94-44.21-151.libero.it [151.21.44.94]) by dd16434.kasserver.com (Postfix) with ESMTPSA id 0D9FA188603F; Mon, 25 Apr 2011 16:04:35 +0200 (CEST) Message-ID: <4DB57F45.4080107@chillt.de> Date: Mon, 25 Apr 2011 16:03:49 +0200 From: Bartosz Fabianowski User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.15) Gecko/20110309 Thunderbird/3.1.9 MIME-Version: 1.0 To: Ian Smith References: <4DA596D3.1090803@chillt.de> <4DB44DA3.5060509@chillt.de> <4DB4589B.2020909@ksu.ru> <4DB45D6C.20203@chillt.de> <20110424182456.9DD03589@server.theusgroup.com> <4DB46ED4.2010500@chillt.de> <20110425004818.GA22579@icarus.home.lan> <4DB51F27.5010508@chillt.de> <20110425184728.C73992@sola.nimnet.asn.au> <4DB56CDA.50504@chillt.de> <20110425232429.N85801@sola.nimnet.asn.au> In-Reply-To: <20110425232429.N85801@sola.nimnet.asn.au> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org, John , Jeremy Chadwick Subject: Re: System extremely slow under light load 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: Mon, 25 Apr 2011 14:04:37 -0000 > Sorry to hear none of that helped. It seems a very serious problem, and > it would be useful to know if it behaves any better under linux or not. I am still on the hunt for a bootable Linux distribution. I am in the unfortunate situation of having no CD-Rs at hand. And because it is Easter, shops are closed. Most Linux distributions require you to run a proprietary tool from inside Windows or another Linux installation to create a bootable USB medium. I found a USB image for OpenSUSE but that failed to boot. I am continuing to hunt... > You need sysctl hw.acpi.cpu.cx_lowest="C2" instead .. that's what > /etc/rc.d/power_profile adjusts when you apply or remove power. > I doubt it's likely to help much given the scale of overheating. I use the correct sysctl now, the cx_lowest value changed from C1 to C2 for all CPUs but nothing seems to have changed otherwise: %sysctl dev.cpu | grep cx_usage dev.cpu.0.cx_usage: 100.00% 0.00% last 230us dev.cpu.1.cx_usage: 100.00% 0.00% last 216us dev.cpu.2.cx_usage: 100.00% 0.00% last 159us dev.cpu.3.cx_usage: 100.00% 0.00% last 323us dev.cpu.4.cx_usage: 100.00% 0.00% last 320us dev.cpu.5.cx_usage: 100.00% 0.00% last 357us dev.cpu.6.cx_usage: 100.00% 0.00% last 378us dev.cpu.7.cx_usage: 100.00% 0.00% last 374us > That's pretty sad. Not sure what the first two differing by only 1MHz > means .. but I'm out of ideas, and my depth. Thanks for all the tips. I will report back once I have had a chance to compare with Linux. If nothing else helps, I will call Dell again in the futile attempt to have them magically fix the issue somehow. - Bartosz