[Powertop] [Bug] powertop 2.1 isn't measuring task power properly on my Thinkpad T530

[Marc MERLIN <marc_powertop at merlins.org>]

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Howdy,

I just downloaded and built 2.1, and a couple of things aren't right:
1) header columns aren't aligned with the data
2) power estimate shown in the kW range :)

I re-ran the new powertop later, and even when it's not way way off, I
still get weird data like this:
  21.3 W     86.7%                      Device         Display backlight
I don't think my display uses 21W :) (it's about 6W when it's burning as
high as it can).

See screenshot of 2.1 vs 1.98:

Is there other info I can provide?

Thanks,
Marc

----------------------------------------------------------------------------
PowerTOP 2.1      Overview   Idle stats   Frequency stats   Device stats   Tunables                                     
The battery reports a discharge rate of 14.0 W
The estimated remaining time is 5 hours, 16 minutes

Summary: 448.2 wakeups/second,  82.7 GPU ops/seconds, 0.0 VFS ops/sec and 10.6% CPU use

Power est.              Usage       Events/s    Category       Description
 10.0 kW     66.2 ms/s     257.2        Process        /usr/bin/enlightenment
 3.72 kW    566.5 µs/s      69.9        Process        nm-applet --sm-disable
  79.4 W      0.9 ms/s       9.7        Process        xfce4-terminal -T window9 --role=window9
  6.26 W    123.2 µs/s      0.00        Process        xfce4-terminal -T window12 --role=window12
  5.89 W     26.7%                      Device         Display backlight
  2.10 W    100.0%                      Device         Audio codec alsa:hwC0D0: thinkpad (Realtek)
  2.09 W     11.2 µs/s      0.15        Process        xscreensaver
  1.37 W     35.4 pkts/s                Device         Network interface: wlan0 (iwlwifi)
  180 mW      3.7 ms/s      54.9        Interrupt      [6] tasklet(softirq)
  105 mW      1.1 ms/s      32.1        Process        /usr/bin/python /usr/local/bin/offlineimap
 77.8 mW      1.3 ms/s      23.7        Interrupt      [47] i915(a)pci:0000:00:02.0
 63.4 mW      0.8 ms/s      19.3        Timer          hrtimer_wakeup
 47.0 mW      1.1 ms/s      14.3        Timer          tick_sched_timer
 35.5 mW      1.5 ms/s      10.8        Interrupt      [7] sched(softirq)

----------------------------------------------------------------------------

PowerTOP 1.98     Overview   Idle stats   Frequency stats   Device stats   Tunab

The battery reports a discharge rate of 14.1 W

Summary: 627.6 wakeups/second,  0.0 GPU ops/second and 0.0 VFS ops/sec

Power est.      Usage       Events/s    Category       Description
  21.4 W     26.7%                      Device         Display backlight
    0 mW     88.5 ms/s     148.6        Process        /usr/bin/enlightenment
    0 mW     45.9 ms/s       0.5        Process        powertop-2.1
    0 mW     15.8 ms/s     147.2        Process        /usr/bin/X :0 vt7 -br -no
    0 mW      6.2 ms/s       1.4        Process        /usr/sbin/NetworkManager
    0 mW      4.7 ms/s       9.0        Interrupt      [46] iwlwifi
    0 mW      2.8 ms/s      0.15        Process        [kswapd0]
    0 mW      1.9 ms/s      85.0        Interrupt      [6] tasklet(softirq)
    0 mW      1.4 ms/s       5.9        Process        gvim /home/merlin/powerto
    0 mW      1.3 ms/s      39.3        Interrupt      [47] i915(a)pci:0000:00:02.
    0 mW      1.2 ms/s      49.7        Timer          tick_sched_timer
    0 mW      1.1 ms/s      30.5        Interrupt      [7] sched(softirq)

-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/