touch-packages team mailing list archive

[Albert Astals Cid <albert.astals@xxxxxxxxxxxxx>]

Phone has been running all night here and i can't reproduce the high cpu
usage issue. Do you think is there something you do that triggers it?

Not sure it will help but when it's happening can you please do

sudo strace `pidof unity8`
let it run for a while, then Ctrl+C and attach the output

sudo gdb `pidof unity8`
thread apply all bt
and attach the output

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to unity8 in Ubuntu.
https://bugs.launchpad.net/bugs/1422898

Title:
  Excessive CPU usage, even when the screen is turned off

Status in unity8 package in Ubuntu:
  Confirmed

Bug description:
  Since mako image r102 (vivid-proposed), the CPU usage of Unity8 is very excessive and increasing over time.
  After boot, the phone runs smooth but after some time it lags heavily.

  As you can see from the attached output of the "top" command, Unity8
  consumes 23% of CPU power when the screen is TURNED OFF (command run
  via adb). When the screen is on, this figure is much higher and
  sometimes rises up to 60%.

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