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[Launchpad Bug Tracker <1379296@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:~unity-team/qtmir/dash-killed-less-likely

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https://bugs.launchpad.net/bugs/1379296

Title:
  unity8-dash should be excluded from app lifecycle management

Status in “qtmir” package in Ubuntu:
  In Progress
Status in “unity8” package in Ubuntu:
  Opinion

Bug description:
  STEPS:
  1. Install the BBC NEWS app from the store
  2. Go back to the apps scope
  3. Open the bbc app browse about a bit
  4. Click on a video link
  5. let it play for a while
  6. Cycle back to the scopes
  Scopes then restarts

  
  having a lot of apps open my unity8-dash gets contantly killed along the apps if a certain OOM threshold is reached ... this appears like a system crash of the UI (even though it is desired killing) from a user perspective ...

  checking the oom_score_adj values of all running apps i see that the
  dash has the same high value as all other open foreground apps:

  ...
  11	7960	oxide-renderer
  11	7963	oxide-renderer
  11	7988	oxide-renderer
  300	6170	oxide-renderer
  802	12514	unity8-dash
  802	6088	webbrowser-app
  802	6873	webapp-containe
  802	7425	webapp-containe
  802	7910	webapp-containe

  (the full log can be found at http://paste.ubuntu.com/8526308/ ) given
  that the dash is one part of our core UI it should be excluded from
  app lifecycle management (keeping the same oom_score of 10 as unity8
  does) so that only actual apps get killed on high memory pressure.

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