CPU Underclocking doesn't work after reboot

[soulreaver1]

Hi,

I'd like to permanently restrict the cpu frequency. I can do it by running

sysctl dev.cpu.0.freq=995

command as root. It works, and could be checked by command

sysctl dev.cpu.0.freq

, it shows that cpu frequency is set to 995.
The problem is that I can't set it permanently (to work after reboot). I've ran following command (as root):

echo sysctl dev.cpu.0.freq=995 >> /etc/sysctl.conf

which should set it permanently, but after reboot command

sysctl dev.cpu.0.freq

shows maxiumum possible frequency, not the 995Mhz. Is there's something I've forgotten about?

 

[phoenix]

You don't put the sysctl command into /etc/sysctl.conf. Just the name of the sysctl to change, and the value to set it to.

Read the comments and examples in that file. Or even the sysctl.conf(5) man page.

 

[soulreaver1]

Thanks, it's works like a charm! This article has made me wrong: http://www.elfnet.org/2010/01/12/underclocking-your-cpu-in-freebsd-8/ .Sorry