D17217: Implement free memory notifier

[Oleg Solovyov]

McPain added a comment.


  In D17217#367525 <https://phabricator.kde.org/D17217#367525>, @ngraham wrote:
  
  > Thanks for all the work!
  >
  > ...But is this actually useful or actionable for the majority of users? Free space is a fairly understandable concept: if you run out, you need to delete things to make more room before you can add more stuff. It won't fix itself unless the user does something. But memory pressure requires a much greater technical understanding and isn't subject to the same conditions. When the system is using up 75% of the available memory, there isn't necessarily a problem at all. Apps will move to swap automatically. Even if there is a problem, it's only temporary, and it may fix itself if the user does nothing as the system shuffles things around.
  >
  > I worry that this notifier would just be yet another annoying pop-up that people dismiss because they don't understand it.
  
  
  Sometimes I see what happens if you're running out of memory and oom can't do anything - the whole system halts and only solution for this is hard reset with all unsaved data lost.
  25% is not hardcoded value, you can reduce threshold down to 1% and also you can include your swap space in settings.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D17217

To: McPain, broulik, #vdg
Cc: ngraham, plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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