Re: CPU power management
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 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/throttling, I have:
state count: 8
active state: T0
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