On Sun, Apr 26, 2009 at 9:44 PM, Mark Haywood <[email protected]> wrote: > Lurie wrote: >>> >>> That's not true. >>> cpupm mode can be changed by pmconfig on the fly. >>> >> >> Should've been more specific in my reply, so: >> >> % vi /etc/power.conf # Change to poll-mode >> % pfexec pmconfig >> >> % pfexec powertop # shows proc. always at max speed % pfexec reboot # >> After the reboot, powertop shows proc. at lower freq. >> > > It is either a bug or your system isn't idle enough for poll-mode to lower > the freq. either. I have successfully switched event-mode and poll-mode many > times without a reboot. >
I checked it just now on my system(OpenSolaris200906-snv111), it works properly. When change to poll-mode, you'd better to set the "cpu-threshold" to "1s". The default scanning cycle is 15s, which means you need to wait for a while(>15s) to see the frequency transition. ============================ cpupm enable poll-mode cpu-threshold 1s ============================ After issue "pmconfig", you should see the lowest frequency residency in powertop if your system is idle. -Aubrey _______________________________________________ indiana-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/indiana-discuss
