On Fri, Feb 16, 2007 at 06:22:29PM +0100, Mattia Dongili wrote: > 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.
Oh, and let me add (even if probably aready mentioned): throttling doesn't save any power, it just idles your cpu. Ok, less heat (no fans, etc) but the real saving is probably unnoticeable. -- mattia :wq! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
