https://bugs.kde.org/show_bug.cgi?id=422306

--- Comment #28 from Méven Car <meve...@gmail.com> ---
(In reply to Fredric from comment #26)
> This is not a duplicate of Bug 451876. 
> 
> My ~/.local/share/user-places.xbel was originally only 389 lines. After I
> deleted it, the new file is only 269 lines. But I still experience the bug
> as explained by the bug reporter. 
> 
> I use autofs to mount my SAMBA shares, no NFS shares, but even after I
> disable the autofs service, I still experience the dolphin startup delay and
> file dialog delay. 
> 
> 
> Operating System: Arch Linux 
> KDE Plasma Version: 5.27.9
> KDE Frameworks Version: 5.111.0
> Qt Version: 5.15.11
> Kernel Version: 6.5.9-zen2-1-zen (64-bit)
> Graphics Platform: X11
> Processors: 8 × 11th Gen Intel® Core™ i7-1180G7 @ 1.30GHz
> Memory: 15.3 GiB of RAM
> Graphics Processor: Mesa Intel® Xe Graphics
> Manufacturer: LENOVO
> Product Name: 20UQS12G00
> System Version: ThinkPad X1 Nano Gen 1

Since I can't reproduce your issue and no one else it seems, you are the one in
the best position to investigate.

If you have some technical skills, you could record use hotspot
(https://github.com/KDAB/hotspot, it is in AUR in version 1.4.1) to determine
what is taking dolphin so long.
You first need to get debug symbols, you should have debuginfod on your system.
Running `gdb dolphin` then type r in the console, the debug symbols should be
downloaded, once the dolphin window shows up, you can close it and use hotspot.
Running hotspot will require to run `echo 0 | sudo tee
/proc/sys/kernel/perf_event_paranoid` to allow it to observe files.

Then you can screenshot the flamegraph, or try to identify which functions and
taking too long to finish.

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