zhuqin@ubuntu:~$ cpufreq-info cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006 Report errors and bugs to linux@brodo.de">linux@brodo.de, please. analyzing CPU 0: driver: centrino CPUs which need to switch frequency at the same time: 0 hardware limits: 798 MHz - 1.73 GHz available frequency steps: 1.73 GHz, 1.73 GHz, 1.73 GHz, 1.73 GHz, 1.73GHz, 1.73 GHz, 1.73 GHz, 1.33 GHz, 1.06 GHz, 798 MHz available cpufreq governors: powersave, userspace, ondemand, conservative, performance current policy: frequency should be within 798 MHz and 1.73 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency is 798 MHz.