powerd effectiveness

Daniel O'Connor doconnor at gsoft.com.au
Wed Jan 11 22:05:16 PST 2006


On Thu, 12 Jan 2006 16:05, Mike Jakubik wrote:
> > Fair enough.. still.. makes testing simpler IMO.
>
> Agreed. However thats how i tested it :P

Heh
> > 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.

Wow, that's weird, wish my AMD would do speeds like that :)

As for your temperature observation - I have no idea sorry. It would appear 
that powerd is doing the right thing but for some reason your CPU is not 
benefiting. That said checking by measuring temperature is fraught with 
complexity because there is probably a significant delay between a change in 
power consumption and a corresponding chaange in heatsink temperature.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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