Date: Sun, 20 Dec 2009 09:15:19 +0100 From: Thomas Backman <serenity@exscape.org> To: Michal Varga <varga.michal@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Systems running hot? Message-ID: <7CEE793D-0485-43EC-81CD-FAA7CD73DA52@exscape.org> In-Reply-To: <3f1fd1ea0912192339ob8bc80dx5b5f8ba0c6d6dad7@mail.gmail.com> References: <20091220063318.49A8C1CC0B@ptavv.es.net> <4B2DCC83.1000402@FreeBSD.org> <3f1fd1ea0912192339ob8bc80dx5b5f8ba0c6d6dad7@mail.gmail.com>
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On Dec 20, 2009, at 8:39 AM, Michal Varga wrote: > Sorry to hijack the thread, but I'm curious - is anybody running > powerd/throttling on a Phenom-based CPU? > > I see cpufreq attaching normally on /AMD Athlon(tm) 64 X2 Dual Core > Processor 3600+ (2004.56-MHz 686-class CPU)/: > > But not so on much newer /AMD Phenom(tm) 8450 Triple-Core Processor > (2109.74-MHz 686-class CPU)/: > > # kldload -v cpufreq > Loaded cpufreq, id=23 > >> From the offending Phenom: > # sysctl dev.cpu.0. > dev.cpu.0.%desc: ACPI CPU > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_PR_.C000 > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.cx_supported: C1/0 > dev.cpu.0.cx_lowest: C1 > dev.cpu.0.cx_usage: 100.00% last 500us > dev.cpu.0.temperature: 27.5C > > This is from latest 7.2. Were there any changes in 8/9-CURRENT to > bring some love to Phenoms too? I have little to no experience with power saving in *nix, but have you made sure the BIOS settings support throttling etc.? Regards, Thomas
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