I'm running Ubuntu 13.10
on a MSI gs70 Stealth
laptop. When I run powertop 2.4
, I see:
The battery reports a discharge rate of 38.1 W The estimated remaining time is 0 hours, 5 minutes
Summary: 1524,0 wakeups/second, 56,0 GPU ops/seconds, 0,0 VFS ops/sec and 28,3% CPU use
Power est. Usage Events/s Category Description
6.97 W 96,7% Device Display backlight
1.19 W 18,9 ms/s 296,8 Interrupt [6] tasklet(softirq) 586 mW 1,2 ms/s 146,8 kWork od_dbs_timer 525 mW 7,0 ms/s 130,8 Process smbd -F 454 mW 3,1 ms/s 113,4 Timer hrtimer_wakeup 450 mW 3,4 ms/s 113,5 Process /usr/bin/pulseaudio --start --log-target=syslog 445 mW 10,5 ms/s 100,6 Process /opt/google/chrome/chrome
--no-startup-window 398 mW 20,4 ms/s 91,5 Process compiz 369 mW 1,1 ms/s 92,4 Process [rcu_sched] 323 mW 79,0 ms/s 72,7 Process /opt/google/chrome/chrome --type=renderer --lang=en-US
--force-fieldtrials=AutocompleteDynamicTrial_2/DefaultControl_R2_Stable/ 301 mW 35,1 ms/s 67,6 Process /usr/bin/tilda 230 mW 1,8 ms/s 57,5 Timer tick_sched_timer 163 mW 3,9 ms/s 40,4 Interrupt [46] i915 158 mW 10,7 ms/s 38,5 Process /usr/bin/ibus-daemon
--daemonize --xim
89.6 mW 21,9 ms/s 20,1 Process /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
86.9 mW 2,0 ms/s 21,6 Interrupt PS/2 Touchpad / Keyboard / Mouse
73.7 mW 3,0 ms/s 18,1 Process /usr/lib/ibus/ibus-engine-simple
69.0 mW 169,3 µs/s 17,3 kWork flush_to_ldisc
67.2 mW 149,9 µs/s 16,8 kWork intel_unpin_work_fn
47.2 mW 11,5 ms/s 10,6 Process /usr/lib/unity/unity-panel-service
43.3 mW 321,8 µs/s 10,8 Process java -jar Downloads/tomighty-0.7.1.jar
42.3 mW 3,7 ms/s 10,2 Process /opt/google/chrome/chrome --type=renderer --lang=en-US
--force-fieldtrials=AutocompleteDynamicTrial_2/DefaultControl_R2_Stable/
30.7 mW 6,9 ms/s 7,0 Process powertop
30.7 mW 1,0 ms/s 7,6 Process zeitgeist-datahub
29.8 mW 1,4 ms/s 7,3 Process /usr/lib/x86_64-linux-gnu/indicator-application-service
28.0 mW 36,6 µs/s 7,0 kWork console_callback
26.8 mW 3,4 ms/s 6,4 Process indicator-multiload
25.0 mW 126,9 µs/s 5,6 Process syndaemon -i 1.0 -t -K -R
23.4 mW 87,2 µs/s 5,8 kWork ieee80211_iface_work
20.4 mW 6,7 ms/s 4,4 Process /opt/google/chrome/chrome --type=renderer --lang=en-US
--force-fieldtrials=AutocompleteDynamicTrial_2/DefaultControl_R2_Stable/
19.9 mW 236,9 µs/s 5,0 Process [rcuos/7]
16.6 mW 648,9 µs/s 4,1 Process /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
16.2 mW 687,7 µs/s 4,0 Process /usr/bin/gtk-window-decorator
15.1 mW 3,3 ms/s 3,4 Process /usr/lib/x86_64-linux-gnu/hud/hud-service
14.5 mW 391,1 µs/s 3,6 Interrupt [1] i8042
10.9 mW 248,1 µs/s 2,7 Interrupt [4] block(softirq)
Why if I sum all the values in the Power est.
column I don't get the 38.1W
of the discharge rate, but only something like 8~9W
?