My observation was with powertop.... though I recognize there is a bug there.
- Matt Mark Haywood <Mark.Haywood at Sun.COM> wrote: >Antonello Cruz wrote: >> Mark Haywood wrote: >>> Antonello Cruz wrote: >>>> Aubrey Li wrote: >>>>> On Tue, Apr 28, 2009 at 3:05 AM, Henrik Johansson >>>>> <henrikj at henkis.net> wrote: >>>>>> >>>>>> My power management works fine when I first boot my Lenovo T61, >>>>>> but after >>>>>> putting it into suspend mode it will always run on the highest >>>>>> frequency. >>>> I see the same behavior with a Dell XPS 1330M >>>> I've notice that if I disconnect the power adapter and then >>>> reconnect, it goes to a more same behavior. >>> So that I can do some investigation ... I assume you are running >>> CPUPM in poll-mode? >> That's right, I've attached my power.conf file >> >> >> Since I cannot type (apparently) here is what happens: >> If I suspend/resume, after resume powertop report max P-state >> (2001Mhz(turbo) 100%) and it seems the system is stuck at that cpu >> frequency. This is confirmed with >> kstat -m cpu_info -s current_clock_Hz >> >> If I unplug the power supply, the cpu frequency drops to 800MHz. When >> I plug the power supply back in, the frequency goes up to 2001Mhz and >> gradually goes down to 800MHz again. Frequencies in all steps are >> confirmed with >> kstat -m cpu_info -s current_clock_Hz > >Folks really ought to use powertop instead of the current_clock_Hz kstat >now. Unfortunately, I think current_clock_Hz will be a confusing kstat >now that PAD has integrated. You might still see that you are not >leaving the 2001MHz P-state, but I would verify with /usr/bin/powertop. > >Thanks, >Mark > >> >> >> Antonello >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> pm-discuss mailing list >> pm-discuss at opensolaris.org >> http://mail.opensolaris.org/mailman/listinfo/pm-discuss > >_______________________________________________ >indiana-discuss mailing list >indiana-discuss at opensolaris.org >http://mail.opensolaris.org/mailman/listinfo/indiana-discuss
