On Thu, Feb 15, 2007 at 11:26:24PM +0200, Eddy Petri??or wrote:
[...]
> I have installed Debian GNU/kFreeBSD and indeed, the levels are many
> more than on Linux:
>
> sysctl dev.cpu.0.freq_levels
>
> Results in a list of frequencies down to 31 MHz. I tried some script I
> found on the freebsd lists[1] to test the speed of blowfish at various
> speeds and observed that on my Core 2 Duo that:
[...]
> In conclusion, it would be nice if this code would be ported to Linux, too.
AFAICT they are mixing freq scaling and throttling.
See /proc/acpi/processor/CPU[01]/throttling, I have:
state count: 8
active state: T0
states:
*T0: 00%
T1: 12%
T2: 25%
T3: 37%
T4: 50%
T5: 62%
T6: 75%
T7: 87%
and the available frequency steps here are 1.83 GHz, 1.33 GHz, 1000 MHz
This is a Core2 Duo T5600.
so eg. at 1GHz I can throttle at 880, 750, 630, 500, 380, 250 and
130 MHz.
--
mattia
:wq!
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