Date: Mon, 23 Oct 2006 18:56:42 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-stable@FreeBSD.ORG, bsd@lordcow.org Subject: Re: cpu usage Message-ID: <200610231656.k9NGug1p065806@lurza.secnetix.de> In-Reply-To: <20061023162352.GA30413@lordcow.org>
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gareth <bsd@lordcow.org> wrote: > hi, i'm on FreeBSD 6.1, with a problematic cpu - it seems > to be overheating and shutting the system down when running > intensive jobs, at the moment i can't even finish compiling > the mysql-server in ports. i've tried running the make with > an increased nice level, but that doesn't seem to change > much. It shouldn't change anything. The nice level will not reduce the amount of work that your CPU is doing, it might only shift that amount between processes. > and looking through ports there only seems to be > cpu monitoring tools, not suppression? Depending on the type of your CPU (which you didn't tell us), it might be possible to reduce the clock rate using the cpufreq(4) framework. You can control it with sysctl. Reducing the clock rate will reduce the power consumption and thus the heat generated by the CPU. Of course it will also make your computer run much slower. However, since you seem to have a hardware problem, you should first try to fix your hardware. If the CPU is overclocked, stop that. If the timing values in the BIOS setup have been set too tight, correct them. If there's insufficient cooling (e.g. heat sink to small or not correctly attached, or broken fan, or whatever), then fix it. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. cat man du : where Unix geeks go when they die
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