CPU Frequency Scaling

2008-03-09 Thread Marcel Cuculici
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
chapter?



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


http://img291.imageshack.us/my.php?image=screenshotda4.png

http://img87.imageshack.us/my.php?image=screenshot1yc6.png

CPU settings Bios ScreenShot

http://img99.imageshack.us/my.php?image=cartilasala0017nb9.jpg

http://img100.imageshack.us/my.php?image=cartilasala0017fkq7.jpg
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Re: CPU Frequency Scaling

2008-03-09 Thread Erik Trulsson
On Sun, Mar 09, 2008 at 01:28:17PM +0200, Marcel Cuculici wrote:
 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
 chapter?

You can have it done automatically on FreeBSD too.

First you need to have 'device cpufreq' in your kernel config or load the 
cpufreq
kernel module with kldload cpufreq.  If you can change the frequency
manually, then this is probably already done.

Then you need to run the powerd(8) daemon.  It can be enabled to start
automatically at boot time by putting the line 'powerd_enable=YES' in
/etc/rc.conf






-- 
Insert your favourite quote here.
Erik Trulsson
[EMAIL PROTECTED]
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