https://bugs.kde.org/show_bug.cgi?id=514755
Bug ID: 514755
Summary: Copying many large images in Dolphin slows down
Plamashell so much that it becomes unusable
Classification: Frameworks and Libraries
Product: frameworks-kio
Version First 6.22.0
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
Created attachment 188623
--> https://bugs.kde.org/attachment.cgi?id=188623&action=edit
Screenshot of htop during the copy job
SUMMARY
While I was copying roughly 2000 24 Megapixel JPEGs and RAWs from a CF-Card to
the local SSD.
the system slowed down so much, that I could no longer interact with Plasma's
panel.
htop showed up to 16 processes of kioworker generating thumbnails, while up to
~5 workers had relatively high CPU usage. Please see the screenshot.
STEPS TO REPRODUCE
1. Open Dolphin
2. Split view: Source folder on the CF-Card (connected via USB 3.0),
destination folder in home directory (btrfs, ssd)
3. Previews enabled
4. Copy/Move files from A to B
OBSERVED RESULT
The system becomes pretty unusable during the copy job.
EXPECTED RESULT
The system stays responsive
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.5-200.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 PRO 5850U with Radeon Graphics
Memory: 16 GiB of RAM (14.4 GiB usable)
Graphics Processor: AMD Radeon Graphics
System Version: ThinkPad X13 Gen 2a
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