[dolphin] [Bug 423082] New: Dolphin on mounted samba share slow whilst copying file

[Mathew]

https://bugs.kde.org/show_bug.cgi?id=423082

            Bug ID: 423082
           Summary: Dolphin on mounted samba share slow whilst copying
                    file
           Product: dolphin
           Version: 20.04.2
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: modelmat at outlook.com.au
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 129437
  --> https://bugs.kde.org/attachment.cgi?id=129437&action=edit
Video of the effect.

SUMMARY
Whilst copying a large file to a network share, the Dolphin  GUI is extremely
slow and unresponsive; even when resizing windows or accessing menu bars.

STEPS TO REPRODUCE
1. Copy a large-ish file to a mounted samba drive
2. Open the folder
3. Attempt to use *any* part of dolphin (even window resize redraws are slow)

OBSERVED RESULT
GUI locks up.

EXPECTED RESULT
Should work just as normal (and if it's a task trying to index something, don't
run in the main thread).

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.19.1
KDE Frameworks Version: 5.71.0
Qt Version: 5.15.0
Kernel Version: 5.7.2-arch1-1
OS Type: 64-bit
Processors: 8 × AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
Memory: 5.8 GiB of RAM
Graphics Processor: AMD RAVEN

ADDITIONAL INFORMATION

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