New Hivemind - Powermanagement

I was asked in a comment, if Solaris supports power management with the processor in the HP N36L microserver. The answer is yes. Best way to check this is via kstat. If kstat shows multiple frequencies as supported frequencies, it supports Power Management for the processor:

jmoekamp@hivemind:~$ kstat -m cpu_info | grep "supported_frequencies_Hz"
        supported_frequencies_Hz        800000000:1100000000:1300000000
        supported_frequencies_Hz        800000000:1100000000:1300000000

However before Solaris really uses it, you have to configure powermanagement. At first add or change the following lines in /etc/power.conf:

cpupm            enable
cpu_deep_idle enable
cpu-threshold    10s

Afterwards run the command pmconfig once. Now keep the system idling for 10 seconds and check the frequencies the system runs at:

jmoekamp@hivemind:~# kstat -m cpu_info | grep "current_clock_Hz"  
        current_clock_Hz                800000000
        current_clock_Hz                800000000