https://bugs.kde.org/show_bug.cgi?id=425980
Bug ID: 425980
Summary: Search freezes on large collection
Product: digikam
Version: 7.0.0
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Searches
Assignee: digikam-bugs-n...@kde.org
Reporter: ja...@lab6.com
Target Milestone: ---
SUMMARY
STEPS TO REPRODUCE
1. Start digikam with a large collection (say, 374,690 images)
2. Click Tools -> Search
3. There's no step 3
OBSERVED RESULT
Digikam freezes for 2-5 minutes while showing the first few photos of the
collection. When the UI unfreezes, the status bar shows "(1 of 374,690)".
Typing one letter into the search box causes the UI to freeze again. Waiting
again eventually allows text entry, and the search to complete.
Additionally, if you exit digikam at this point, upon next launch it will start
on the search screen and commence the 2-5 minute wait again.
EXPECTED RESULT
The search UI remains responsive and allows the user to enter a search term and
then search for it.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Ubuntu 20.04.1 running XFCE
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
Hardware: Database on Samsung EVO 970 EVO Plus SSD, images on btrfs RAID1 HDDs,
Ryzen 3700X CPU, 32GB RAM.
I speculate that the initially empty search box is causing digikam to attempt
to process every item in the collection, which becomes infeasible for a large
collection.
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