Help to configure cpufreq

tafsen · 2007-02-04 05:52:58

I have a Intel(R) Pentium(R) M processor 1.50GHz, so I guess the max cpufreq should be 1.5. But what about the minimum?

phrakture · 2007-02-04 06:13:57

That's entirely up to you. Some CPUs have "steps" instead of a full range.

See the "available frequency steps":

$ cpufreq-info 
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to linux@brodo.de, please.
analyzing CPU 0:
  driver: centrino
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 1000 MHz - 1.83 GHz
  available frequency steps: 1.83 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 1000 MHz and 1.83 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz.
analyzing CPU 1:
  driver: centrino
  CPUs which need to switch frequency at the same time: 1
  hardware limits: 1000 MHz - 1.83 GHz
  available frequency steps: 1.83 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 1000 MHz and 1.83 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 1.83 GHz.

Just pick one and try it out for a while - when it flips is going to be dependent on your governor.

billy · 2007-02-04 11:12:08

The line where it says:

CPUs which need to switch frequency at the same time: 0 1

Can this be changed or is this hardware set?

Stalwart · 2007-02-04 17:52:49

Probably you have multicore CPU. AFAIK it's hardware limitation

Arch Linux

#1 2007-02-04 05:52:58

Help to configure cpufreq

#2 2007-02-04 06:13:57

Re: Help to configure cpufreq

#3 2007-02-04 11:12:08

Re: Help to configure cpufreq

#4 2007-02-04 17:52:49

Re: Help to configure cpufreq

Board footer