Hi, I am pasting the discussion about the same issue that is going on in the pm-discuss alias.
http://www.opensolaris.org/jive/thread.jspa?threadID=66704&tstart=0 I assume this will help to answer your questions. Any bug about power management on ON can be filed against solaris/kernel/pm Thanks Anup simon.zheng at sun.com wrote: > Included Anup, who is responsible for cpufreq HAL part. Currently > cpu-threshold seem to be fixed as 1275s. > > On Wed, 2008-07-16 at 08:41 -0400, Sebastien Roy wrote: > >> I've had my /etc/power.conf file manually tweaked to contain the >> following lines since build 86 based on input from Mark Haywood (and his >> blog entry at >> http://blogs.sun.com/mhaywood/entry/introducing_speedstep_on_solaris): >> >> cpupm enable >> cpu-threshold 15s >> >> This works quite well. If the system is idle after 15 seconds, the cpu >> frequency of my Core2 Duo CPU goes from 1330 to 1060 or 800 Mhz. >> >> After having upgraded to build 93, the power.conf file was modified and >> the cpu-threshold was changed from 15 to 1275 seconds. The result is >> that the CPU frequency virtually never come down from its maximum of >> 1330 Mhz. 30 minutes of a pegged CPU when the system is relatively idle >> is not optimal. >> >> I tracked this problem down to the newly introduced Gnome power manager. >> It turns out that whenever I click on the "Preferences" for the Gnome >> power manager in the notification area, it changes my power.conf >> settings in this way even if I don't change any settings. >> > > look odd. At my end, it won't be changed until I manually change > "computer speed policy" in preferences dialog. So could you provide your > more details? Is your machine a laptop or are you using battery? > > >> There are a couple of bugs here, I think. The first is it shouldn't >> change system-wide configuration without the user's consent. The second >> is that its setting of a CPU threshold of 1275 seconds doesn't work in >> practice. >> >> Where should I file a bug on this? >> > > OpenSolaris issue could be logged into http://defect.opensolaris.org/bz/ > For Neveda issue, please log in bugster with category > jds/gnome/applications. > > Thanks, > -Simon > > > -- Anup Pemmaiah Sun Microsystems -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/desktop-discuss/attachments/20080717/bd32817b/attachment.html>
