https://bugs.kde.org/show_bug.cgi?id=424373
Bug ID: 424373
Summary: Gvenview uses enormous amounts of RAM when browsing
big image collections with thumbnails bar on
Product: gwenview
Version: 20.04.3
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: gwenview-bugs-n...@kde.org
Reporter: halftough...@gmail.com
Target Milestone: ---
SUMMARY
When browsing huge collections of images (around 10000 and more) with previews
bar enabled, gwenview can easily use up few GB of RAM. It appears application
loads data for every single image in the directory and stores it in memory.
This could be optimized by limiting loaded previews to images user can see +
some margin for images that are likely to be viewed soon.
STEPS TO REPRODUCE
1. Prepare directory with large number of images
2. Open one of images
3. enable thumbnails bar
OBSERVED RESULT
Application uses few gigabytes of RAM
EXPECTED RESULT
Ram usage should be much smaller
SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.19
KDE Plasma Version: 5.19.3
KDE Frameworks Version: 5.72.0
Qt Version: 5.14.2
Kernel Version: 5.3.0-62-generic
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-4690K CPU @ 3.50GHz
Memory: 7.7 GiB of RAM
Graphics Processor: GeForce GTX 970/PCIe/SSE2
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