Systems running hot?

[Mario Lobo]

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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> 

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)