touch-packages team mailing list archive

[Colin Ian King <1372413@xxxxxxxxxxxxxxxxxx>]

Pat, I use something such like the following awk script to parse the
data:

{
        if ((NF == 5) && ($4 != "PID")) {
                total[$4] += $1
                usr[$4] += $2
                sys[$4] += $3
                cmd[$4] = $5
        }
        if ((NF == 5) && ($4 == "PID"))
                n++
}
END {
        for (i in total)
                printf "%10.2f %10.2f %10.2f %s\n", total[i], usr[i], sys[i], cmd[i]
}

awk -f cpustat.awk < cpustat.log  | sort -nr | head -20

  20400.32   19276.85    1123.57 /usr/lib/upower/upowerd
   3503.49    2570.89     932.58 unity8
   3243.72     870.17    2373.55 cpustat
   2911.39    1710.02    1201.39 /lib/systemd/systemd-udevd
   2207.87     182.06    2025.80 /system/bin/mpdecision
   2133.32    2012.62     120.71 dbus-daemon
   2125.58    1751.23     374.36 messaging-app
   1280.77       0.00    1280.77 [mmcqd/0]
    675.34       0.00     675.34 [jbd2/mmcblk0p23]
    449.83     159.82     289.96 unity-system-compositor
    412.58     312.51     100.07 NetworkManager
    372.17     206.53     165.64 init
    355.62     259.23      96.40 /sbin/init
    323.53       0.00     323.53 [MC_Thread]
    315.88     278.62      37.27 /usr/bin/powerd
    310.32     268.82      41.50 /usr/lib/arm-linux-gnueabihf/indicator-power/indicator-power-service
    267.14     237.61      29.54 maliit-server
    228.89      12.30     216.59 /sbin/healthd
    200.54     169.84      30.70 /custom/vendor/here/location-provider/bin/arm-linux-gnueabihf/posclientd
    182.56      14.76     167.79 /init

So it does seem that upowerd is consuming the most cycles.  Attached is
a spreadsheet and a graph from the raw stats

** Attachment added: "upowerd-cpu-utilisation.ods"
   https://bugs.launchpad.net/ubuntu/+source/powerd/+bug/1372413/+attachment/4315479/+files/upowerd-cpu-utilisation.ods

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to powerd in Ubuntu.
https://bugs.launchpad.net/bugs/1372413

Title:
  Extensive battery drain on RTM

Status in the base for Ubuntu mobile products:
  In Progress
Status in powerd package in Ubuntu:
  Confirmed

Bug description:
  Mako, RTM 1

  Since upgrading to RTM the battery life is really poor. What used to
  be a battery drain of 5-10% per hour (which is still high) is now
  10-15% per hour. Sometimes the phone runs really hot, so there seem to
  be something going on in the background that is consuming power. I
  mostly have bluetooth, GPS (which isn't always working), wifi and
  cellular on, but that's no difference from when I was running 'devel-
  proposed' with MultiROM with much less battery consumption.

  As an example, I started with a full charge at 7am. After some web
  surfing (<15 mins) and watching a couple of youtube videos (on wifi)
  battery was down to 66% at 9:15. That's 34% in just over two hours! I
  recharged again before lunch and had the phone idle until coming back
  1 hour and 45 mins later to find only 75% of battery left, this time
  without the phone running particularly hot.

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