[dolphin] [Bug 468334] New: Dolphin takes a few minutes starting when there is a lot of tags present

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=468334

            Bug ID: 468334
           Summary: Dolphin takes a few minutes starting when there is a
                    lot of tags present
    Classification: Applications
           Product: dolphin
           Version: 22.12.3
          Platform: openSUSE
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: kiwifruit at seibmoz.anonaddy.me
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
When opening dolphin, the KDE filepicker or gwenview, it freezes for a few
minutes while it loads all the tags. On my system I have over 18'900 tags. I
tried the flatpak, which doesn't load the tags for me, and the problem is non
existent.


STEPS TO REPRODUCE
1. Have a lot of tags on many files
2. Open Dolphin

OBSERVED RESULT
Taking a long time to open, in the minutes.

EXPECTED RESULT
Opens without much delay.

SOFTWARE/OS VERSIONS
Distro: openSUSE Tumbleweed with standard repos.
Linux Kernel: 5.2.9-1
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
It was not happening until I tagged a lot of files (over 18k individual tags).
I tried to remove the cache, no change.
I tried to reset dolphin's configuration, no change.

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