[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #12 from Antonio Orefice  ---
For what is worth, the bug is present even in plasmoidviewer.
Just play with it and see how his memory usage grows with ease.

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #11 from Antonio Orefice  ---
I made a 3 minute run of that xdotool script (open and close wallpaper settings
multiple times).
Nvidia proprietary driver + QSG_RENDER_LOOP=basic
Start: 286MB
End: 486MB
Nvidia proprietary driver + unset QSG_RENDER_LOOP
Start: 281MB
End: 533MB
Nouveau + unset QSG_RENDER_LOOP
Start 289MB
End 436MB

So, in the end it seems that NVIDIA blob is using more ram, but not that much,
and plasma/qt are leaking more memory just because qt uses threads with nvidia
proprietary driver, right?

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[David Edmundson via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #10 from David Edmundson  ---
please also try with 

QSG_RENDER_LOOP=basic plasmashell

and report on what that does

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[David Edmundson via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #9 from David Edmundson  ---
Oh, then it's not the issue that I fixed in 5.26 which was purely related to
thumbnails.

The wallpaper dialog doesn't do any custom GL, so if that's leaking only on
NVidia it strongly implies the problem is higher in the stack than Plasma.

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #8 from Antonio Orefice  ---
Since it seems nouveau is not affected, I reported the very same to nvidia
https://devtalk.nvidia.com/default/topic/966824/linux/huge-memory-allocation-on-plasmashell-with-proprietary-driver-nouveau-is-fine/post/4981667/?offset=5#4981701
In there, at posted a script using xdotool that did nothing else that showing
the plasma configuration window; then the get wallpapers window, close both and
reiterate.
After 20 minutes of that, my system started swapping badly and plasma was
eating almost 6GB of ram.

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #7 from Antonio Orefice  ---
New info:
with raster backend, apart from having a broken desktop, it seems plasma still
allows me to interact with panels, so i interacted with them by using the menu,
popup some tooltips, showed the calendar and so on.
Well, with export QMLSCENE_DEVICE=softwarecontext i've a ram usage that starts
with 228MB and ends to 276MB
Using classic opengl, doing the exact same things, it starts at 228MB and
reaches 420MB.

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

Antonio Orefice  changed:

   What|Removed |Added

 Resolution|WAITINGFORINFO  |---
 Status|NEEDSINFO   |UNCONFIRMED

--- Comment #6 from Antonio Orefice  ---
@David Edmundson :
Are you able to reproduce with Nvidia proprietary drivers?

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #5 from Antonio Orefice  ---
First time i tried was with framework 5.25. It persists with 5.26
qt5 is 5.7.0

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[David Edmundson via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

David Edmundson  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEEDSINFO
 Resolution|--- |WAITINGFORINFO

--- Comment #4 from David Edmundson  ---
What version of plasma-framework?

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #3 from Antonio Orefice  ---
I forgot to add that running a compositor or not running a compositor makes 0
difference

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #2 from Antonio Orefice  ---
I just played with nuoveau, and found that it consumes so much less memory.
With a quick test (show kickoff menu, clock, panel configuration window, moving
a plasmoid):
nvidia blob reached 400MB
nuoveau stayed at about 250MB

tried nvidia 367.35 and 370.28

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[plasmashell] [Bug 368838] plasmashell keeps eating ram (NVIDIA BLOB), but never release it.

[Antonio Orefice via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368838

Antonio Orefice  changed:

   What|Removed |Added

Summary|plasmashell keeps eating|plasmashell keeps eating
   |ram, but never release it.  |ram  (NVIDIA BLOB), but
   ||never release it.

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