Skip site navigation (1)Skip section navigation (2)
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>

next in thread | previous in thread | raw e-mail | index | archive | help

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?
>=20
> I see cpufreq attaching normally on /AMD Athlon(tm) 64 X2 Dual Core
> Processor 3600+ (2004.56-MHz 686-class CPU)/:
>=20
> But not so on much newer /AMD Phenom(tm) 8450 Triple-Core Processor
> (2109.74-MHz 686-class CPU)/:
>=20
> # kldload -v cpufreq
> Loaded cpufreq, id=3D23
>=20
>> =46rom the offending Phenom:
> # sysctl dev.cpu.0.
> dev.cpu.0.%desc: ACPI CPU
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=3D\_PR_.C000
> dev.cpu.0.%pnpinfo: _HID=3Dnone _UID=3D0
> 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
>=20
> 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=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?7CEE793D-0485-43EC-81CD-FAA7CD73DA52>