Review Request 110686: Reduce KFileItemModel memory usage by implicitly sharing QByteArrays

[Frank Reininghaus]

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Review request for Dolphin.


Description
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The summary says it all. The idea is based on http://milianw.de/blog/katekdevelop-sprint-vienna-2012-take-1


Diffs
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  dolphin/src/kitemviews/kfileitemmodel.h 1d837cb 
  dolphin/src/kitemviews/kfileitemmodel.cpp d30d9e5 

Diff: http://git.reviewboard.kde.org/r/110686/diff/


Testing
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Opened a directory with 100000 files with the default view properties. Memory usage as reported by ksysguard is reduced from 309 MB to 280.5 MB.


Thanks,

Frank Reininghaus

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