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Date:      Thu, 12 Jan 2006 16:35:03 +1030
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        Mike Jakubik <mikej@rogers.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: powerd effectiveness
Message-ID:  <200601121635.09835.doconnor@gsoft.com.au>
In-Reply-To: <43C5EAB0.3090805@rogers.com>
References:  <43C5A261.1020407@rogers.com> <200601121554.55657.doconnor@gsoft.com.au> <43C5EAB0.3090805@rogers.com>

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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=3D\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=3Dnone _UID=3D0
> 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=
=20
that powerd is doing the right thing but for some reason your CPU is not=20
benefiting. That said checking by measuring temperature is fraught with=20
complexity because there is probably a significant delay between a change i=
n=20
power consumption and a corresponding chaange in heatsink temperature.

=2D-=20
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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