I hope this is the appropriate mailing list... The top three wakeup sources on my X61 Tablet account for 85% of the wakeups! And the two top ones could be avoided IMHO (but I'm not a kernel hacker, so what would I know...).
~40% X : fbcon_add_cursor_timer (cursor_timer_handler) ~30% <kernel core> : usb_hcd_poll_rh_status (rh_timer_func) ~15% xfsbufd : schedule_timeout (process_timeout) While powertop was running, there was no external usb device attached to the laptop and X wasn't running. That's why I think that the top two sources could be avoided. As you can see I'm using XFS, and while it may not be the most power-effective filesystem, 15% is a whole lot if the system is completely idle (swap was disabled). The other wakeup sources contribute each <5%, but contain for example the eth0 interrupt even though no cable is plugged in (at 4%), the e1000 watchdog (at 4%, too, does the watchdog need to kick in that often?), and with <1% each: some other <kernel core/IPI> stuff (page writeback etc). Any suggestions who to contact in order to improve the affected modules to be more power-friendly? thanks tom _______________________________________________ Discuss mailing list [email protected] http://mail.lesswatts.org/mailman/listinfo/discuss
