Date: Sun, 20 Dec 2009 11:14:32 -0300 From: Mario Lobo <lobo@bsd.com.br> To: freebsd-current@freebsd.org Subject: Re: Systems running hot? Message-ID: <200912201114.32661.lobo@bsd.com.br> 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 Sunday 20 December 2009 04:39:54 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)/:
>
> # 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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> http://lists.freebsd.org/mailman/listinfo/freebsd-current
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>
Well, here's my
CPU: AMD Phenom(tm) II X4 955 Processor (3216.13-MHz K8-class CPU)
[~]>sysctl dev.cpu
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.P001
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.freq: 3200
dev.cpu.0.freq_levels: 3200/28215 2800/24688 2500/18625 2187/16296 2100/12650
1837/11068 1575/9487 1312/7906
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: 55.0C
dev.cpu.1.%desc: ACPI CPU
dev.cpu.1.%driver: cpu
dev.cpu.1.%location: handle=\_PR_.P002
dev.cpu.1.%pnpinfo: _HID=none _UID=0
dev.cpu.1.%parent: acpi0
dev.cpu.1.cx_supported: C1/0
dev.cpu.1.cx_lowest: C1
dev.cpu.1.cx_usage: 100.00% last 500us
dev.cpu.1.temperature: 55.0C
dev.cpu.2.%desc: ACPI CPU
dev.cpu.2.%driver: cpu
dev.cpu.2.%location: handle=\_PR_.P003
dev.cpu.2.%pnpinfo: _HID=none _UID=0
dev.cpu.2.%parent: acpi0
dev.cpu.2.cx_supported: C1/0
dev.cpu.2.cx_lowest: C1
dev.cpu.2.cx_usage: 100.00% last 500us
dev.cpu.2.temperature: 55.0C
dev.cpu.3.%desc: ACPI CPU
dev.cpu.3.%driver: cpu
dev.cpu.3.%location: handle=\_PR_.P004
dev.cpu.3.%pnpinfo: _HID=none _UID=0
dev.cpu.3.%parent: acpi0
dev.cpu.3.cx_supported: C1/0
dev.cpu.3.cx_lowest: C1
dev.cpu.3.cx_usage: 100.00% last 500us
dev.cpu.3.temperature: 55.0C
I have:
dev.cpu.0.freq_levels: 3200/28215 2800/24688 2500/18625 2187/16296 2100/12650
1837/11068 1575/9487 1312/7906
dev.acpi_throttle.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1 5000/-1
3750/-1 2500/-1 1250/-1
dev.hwpstate.0.freq_settings: 3200/28215 2500/18625 2100/12650 800/5070
Which one should I choose to set debug.cpufreq.lowest to:
1312, 1250 or 800 ?
Which of these will powerd use?
thanks,
--
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!] (99,7% winfoes FREE)
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