[ltp] How bad is this (on a scale)?

[Micael]

OK, leaving powertop running for a while I get an additional statement;

Power usage (ACPI estimate): 111.9W (0.6 hours) (long term: 9.5W,/7.0h)

This 'long term' looks closer to reality perhaps? 
This is when the computer is totally idel, though.
And still not the windows numbers of 12+ hours (which maybe wrong of course) I 
get when I do simple work.

 - Micael


On Saturday 28 November 2009 13.07.53 Micael wrote:
> 
> Since a few months, I have this nice x200s with a  LED backlit screen and 9 
> cell battery pack, CPU  L9600. Thing is, I think the power is drained quite 
> fast from the battery, much worse than when I dual boot into windows.
> I have disabled the wireless with the hardware button, and tried to find 
> reasons for the poor performance. But maybe I expcted too much from this 
> laptop in terms of battery performance?
> 
> I'd like your opinion on how good/bad the numbers are;
> 
> Cn                Avg residency       P-states (frequencies)
> C0 (cpu running)        ( 1.9%)         2.14 Ghz     0.7%
> polling           0.0ms ( 0.0%)         2.14 Ghz     0.0%
> C1 mwait          0.0ms ( 0.0%)         1.60 Ghz     0.0%
> C2 mwait          0.1ms ( 0.0%)          800 Mhz    99.2%
> C6 mwait          8.7ms (98.1%)
> 
> Wakeups-from-idle per second : 114.1    interval: 15.0s
> Power usage (ACPI estimate): 126.9W (0.6 hours)
> 
> Top causes for wakeups:
>   50.9% ( 71.0)       <interrupt> : PS/2 keyboard/mouse/touchpad
>   19.5% ( 27.3)     <kernel core> : hrtimer_start_range_ns 
(tick_sched_timer)
>    7.5% ( 10.5)      <kernel IPI> : Rescheduling interrupts
>    7.2% ( 10.0)             geany : hrtimer_start_range_ns (hrtimer_wakeup)
>    4.2% (  5.8)       <interrupt> : extra timer interrupt
>    2.2% (  3.1)          knotify4 : hrtimer_start_range_ns (hrtimer_wakeup)
>    1.6% (  2.2)       <interrupt> : i915
>    1.4% (  2.0)              kwin : hrtimer_start_range_ns (hrtimer_wakeup)
>    1.0% (  1.4)    plasma-desktop : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.8% (  1.1)           klipper : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.7% (  0.9)           krunner : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.7% (  0.9)           ifplugd : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.6% (  0.8)     <kernel core> : hrtimer_start (tick_sched_timer)
>    0.5% (  0.7)       <interrupt> : eth0
>    0.5% (  0.7)           konsole : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.4% (  0.5)          events/0 : e1000_watchdog_task (e1000_watchdog)
>    0.1% (  0.2)     <kernel core> : dev_watchdog (dev_watchdog)
>    0.1% (  0.1)      wicd-monitor : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.1% (  0.1)             kded4 : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.1% (  0.1)              init : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.0% (  0.1)     <kernel core> : run_timer_softirq (sta_info_cleanup)
>    0.0% (  0.1)                 X : hrtimer_start_range_ns (hrtimer_wakeup)
>    0.0% (  0.1)                 X : queue_delayed_work 
(delayed_work_timer_fn)
> 
> 
> 
> Cheers, 
>  Micael
> -- 
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