[Powertop] Stilll seeing bogus wattage reported to USB devices

[Marc MERLIN <marc_powertop at merlins.org>]

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With powertop 2.5, see these 3 report taken a minute apart with no
change of load.
All I did was remove the yubikey and put it back in, and unload wlan0



> Yubikey was showing 6W, so I removed it. that didn't change the discharge rate:

The battery reports a discharge rate of 19.9 W
The estimated remaining time is 3 hours, 23 minutes

Summary: 1196.2 wakeups/second,  74.9 GPU ops/seconds, 0.0 VFS ops/sec and 16.6% CPU use

Power est.              Usage       Events/s    Category       Description
  10.7 W     48.4 pkts/s                Device         Network interface: wlan0 (iwlwifi)
  2.39 W     57.1%                      Device         Display backlight
  2.39 W     17.3%                      Device         Display backlight
  395 mW      8.5 ms/s     249.8        Process        /usr/local/opt/google/chrome-beta/chrome
  363 mW      6.4 ms/s     168.0        Process        /usr/local/opt/google/chrome-beta/chrome
  226 mW      5.7 ms/s     155.7        Timer          hrtimer_wakeup



> So I put the yubikey back and and unloaded wlan0 since it was said to
> take 10W (I knew that was false).
No real change either (little drop from removing wireless, but not 10W)

The battery reports a discharge rate of 17.8 W
The estimated remaining time is 3 hours, 43 minutes

Summary: 1155.3 wakeups/second,  81.8 GPU ops/seconds, 0.0 VFS ops/sec and 7.9% CPU use

Power est.              Usage       Events/s    Category       Description
  5.90 W    100.0%                      Device         USB device: Yubico 
  3.15 W     57.1%                      Device         Display backlight
  3.15 W     17.3%                      Device         Display backlight
  353 mW      3.7 ms/s     170.1        Process        /usr/local/opt/google/chrome-beta/chrome
  340 mW     13.0 ms/s     252.8        Process        /usr/local/opt/google/chrome-beta/chrome
  320 mW      6.1 ms/s     238.4        Timer          hrtimer_wakeup


> Yubikye is said to take 6W again, really? I know that's a lie. I removed
and power went up 0.4W (normal variance unrelated to yubikey).

The battery reports a discharge rate of 18.2 W
The estimated remaining time is 3 hours, 38 minutes

Summary: 1284.1 wakeups/second,  36.2 GPU ops/seconds, 0.0 VFS ops/sec and

Power est.              Usage       Events/s    Category       Description
  3.15 W     57.1%                      Device         Display backlight
  3.15 W     17.3%                      Device         Display backlight
  426 mW     20.8 ms/s     166.8        Process        /usr/bin/enlightenm
  343 mW     11.8 ms/s     236.3        Process        /usr/local/opt/google/chrome-beta/chrome
  301 mW      6.3 ms/s     207.0        Timer          hrtimer_wakeup
  168 mW      2.8 ms/s     115.6        Interrupt      PS/2 Touchpad / Keyboard / Mouse


Is anyone closer to fixing this bug? It's impossible to get real battery
usage and due tuning with it present.

Thanks
Marc
-- 
"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/                         | PGP 1024R/763BE901