[Bug 373245] Re: karmic: wakeups <kernel core> : hrtimer_start_range_ns (tick_sched_timer)

[SergeiS]

Same problem! VERY frustrating to see that in Karmic. I am on Samsung
X460 and my battery life is not where it should be. I've disabled
wireless and unloaded it's module but it did not make any difference.

Wakeups-from-idle per second : 403.2    interval: 10.0s
Power usage (ACPI estimate): 16.9W (3.7 hours) (long term: 19.4W,/3.2h)

Top causes for wakeups:
  24.3% (157.0)     <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 
  20.7% (133.7)       <interrupt> : extra timer interrupt 
  16.2% (104.7)               exe : hrtimer_start_range_ns (hrtimer_wakeup) 
   9.0% ( 57.9)       <interrupt> : HDA Intel 
   7.5% ( 48.5)        pulseaudio : hrtimer_start_range_ns (hrtimer_wakeup) 
   5.1% ( 33.2)      <kernel IPI> : Rescheduling interrupts

-- 
karmic: wakeups  <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 
https://bugs.launchpad.net/bugs/373245
You received this bug notification because you are a member of Kernel
Bugs, which is a direct subscriber.