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Date: Thu, 12 Jan 2006 00:35:44 -0500
From: Mike Jakubik <mikej@rogers.com>
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To: Daniel O'Connor <doconnor@gsoft.com.au>
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Cc: freebsd-stable@freebsd.org
Subject: Re: powerd effectiveness
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Daniel O'Connor wrote:
> On Thu, 12 Jan 2006 13:52, Mike Jakubik wrote:
>   
>>> powerd won't run your CPU at a specific clock frequency - it varies the
>>> CPU frequency based on current load conditions.
>>>       
>> The load was 0, only thing that was running was mbmon.
>>     
>
> Fair enough.. still.. makes testing simpler IMO.
>   

Agreed. However thats how i tested it :P
>   
>>> You could try what I do but there are some systems which are very slow to
>>> change clock speed so this could be an impediment.
>>>       
>> What was part of my question, is it the hardware or the software thats
>> at fault here. I.e. would a cool n quiet system be better.
>>     
>
> Hard to say.
> I don't see how you can possibly get the frequencies you say with the hardware 
> you claim.
>
> What does sysctl dev.cpu.0.freq_levels say?
>   
CPU: AMD Athlon(tm) Processor (1410.21-MHz 686-class CPU)

# sysctl dev.cpu.0
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.freq: 87
dev.cpu.0.freq_levels: 1403/-1 1315/-1 1227/-1 1139/-1 1052/-1 964/-1 
876/-1 789/-1 701/-1 613/-1 526/-1 438/-1 350/-1 263/-1 175/-1 87/-1

I think i meant 87, instead of 75.