CPU Frequency Scaling

Marcel Cuculici nuambenzina at gmail.com
Sun Mar 9 11:55:25 UTC 2008

Hello everyone! My system hardware is Asus P5B with Intel Core Duo 2 e6600.
I installed on it freeBSD 7.0 Release yesterday, but I don`t understand
something. In Gnome there is CPU Frequency Scaling Monitor Witch it`s set to
Performance, and the Cpu freq. is 2.39 Ghz, I can change it MANUALLY to
other freq as can bee see it in the link`s above, but can not set to Economy

 In bios I have Intel Speed Step Enabled, and Cpu Freq set to AUTO.

 However, in Windows XP, my power scheme is set to Minimal Power Management
And the cpu freq stay at 1.58-1.60, and when computer need more cpu power
it  AUTOMATICALY jump`s to 2.40 Ghz.
 The same thing happen`s in Ubuntu linux 7.10 and Debian Etch, the Cpu stay
at ~1.60 Ghz and it jump`s auto when more Cpu resources is needed.

 I don`t undersntand why in linux and windows the cpu is automatically
controlled by operating system and in freeBSD I need to set it manually. How
can be this changed for freeBSD, to act as windows/linux at cpu freq scaling

Thank`s in advance, and have a nice day! :)
freeBSD Cpu Freq ScreenShot



CPU settings Bios ScreenShot



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