Date: Sun, 20 Dec 2009 08:39:54 +0100 From: Michal Varga <varga.michal@gmail.com> To: freebsd-current@freebsd.org Subject: Re: Systems running hot? Message-ID: <3f1fd1ea0912192339ob8bc80dx5b5f8ba0c6d6dad7@mail.gmail.com> In-Reply-To: <4B2DCC83.1000402@FreeBSD.org> References: <20091220063318.49A8C1CC0B@ptavv.es.net> <4B2DCC83.1000402@FreeBSD.org>
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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)/:
# kldload -v cpufreq
Loaded cpufreq, id=25
powernow0: <PowerNow! K8> on cpu0
powernow1: <PowerNow! K8> on cpu1
# /etc/rc.d/powerd start
Starting powerd.
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
# /etc/rc.d/powerd start
Starting powerd.
powerd: lookup freq: No such file or directory
Cue in src/usr.sbin/powerd/powerd.c:
if (sysctlnametomib("dev.cpu.0.freq", freq_mib, &len))
err(1, "lookup freq");
>From AMD X2:
# 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.freq: 995
dev.cpu.0.freq_levels: 1990/65000 1791/53913 995/25168
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: 39.0C
>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?
m.
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