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Review request for Plasma and Aaron J. Seigo.


Summary
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The comic plasmoid uses prefetching by calling 
Plasma::DataEngine::query(source).
Yet apparantly these created sources do not get removed automatically (?) 
causing an increase of memory usage the more comics are viewed.

E.g. looking at 15 strips of Lackadaisy that had not been cached before caused 
a memory usage of 114 MB for the plasmoidviewer. The patch reduces the usage in 
the same case to 52.9 MB. Each of these comics has a size between 1.2 MB and 
2.6 MB.
So please comment on the patch! :)

I wonder why it is still that high with the patch after looking at some comics, 
so if you can help to reduce that further that would be great.
Further I wonder if some of the perceived "plasma mem leak" reports are caused 
by the way the comic plasmoid works.


Diffs
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  applets/comic/CMakeLists.txt 8513d9c 
  applets/comic/comic.h 7134c72 
  applets/comic/comic.cpp 3785f4f 
  applets/comic/prefetcher.h PRE-CREATION 
  applets/comic/prefetcher.cpp PRE-CREATION 

Diff: http://git.reviewboard.kde.org/r/101046/diff


Testing
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Thanks,

Matthias

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