Joannie, There are three factors that save power (from build 109 onwards) p-states (performance states) which throttle the frequencies. The cpu must support "hwpstate". See http://en.gentoo-wiki.com/wiki/Safe_Cflags/AMD for which CPU supports what.
c-states (power states) which stop a cpu (hlt) when there is no work. You can't observe c-states using kstat. use powertop. c0 is running; c1 is stopped. t-states (cpu idle-ing) Please check your bios for cool'n'quiet support. My bios by default turns it off - hence no power management anymore. I hope this helps. Regards, Tom. Joanmarie Diggs wrote: > Hi all. > > I bought one of the new Gateway netbooks. The CPU is an AMD Athlon 64 > L110. I couldn't (and still cannot) find any official spec that > indicates whether or not it supports PowerNow! But I assumed being brand > new that surely it would.... > > $ kstat -m cpu_info -i 0 -s implementation > module: cpu_info instance: 0 > name: cpu_info0 class: misc > implementation x86 (AuthenticAMD 70FC2 family 15 model > 124 step 2 clock 1200 MHz) > > $ kstat -m cpu_info -i 0 -s supported_frequencies_Hz > module: cpu_info instance: 0 > name: cpu_info0 class: misc > supported_frequencies_Hz 1196896347 > > Oops. :-) > > Should I read the above as "OpenSolaris doesn't support power management > on this processor *at the moment*" or as "OpenSolaris will never be > capable of supporting power management on this processor"? > > Thanks and take care. > --joanie > > _______________________________________________ > pm-discuss mailing list > pm-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/pm-discuss
