Bug 467774 - High CPU usage when a video content is changing (like in downloads/renders)
Summary: High CPU usage when a video content is changing (like in downloads/renders)
Status: CONFIRMED
Alias: None
Product: kio-extras
Classification: Frameworks and Libraries
Component: Thumbnails and previews (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-25 12:29 UTC by Mohammad K.
Modified: 2023-12-20 22:33 UTC (History)
2 users (show)

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Description Mohammad K. 2023-03-25 12:29:00 UTC 
SUMMARY
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When a file content is changing (like dwnloading a video or rendering), if the file directory is open in Dolphin, it tries to generate a thumbnail every moment, which causes a high cpu usage.
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STEPS TO REPRODUCE
1. Enable file thumbnails in Dophin
2. Open a directory 
3. Start downloading a video in that directory
4. See the high CPU usage of thumbnail generator

SOFTWARE/OS VERSIONS

KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8
Kernel Version: 6.2.8-arch1-1 (64-bit)
Graphics Platform: Wayland
Comment 1 Jessica M 2023-12-20 22:33:28 UTC 
I can confirm that this also happens to me. When copying a movie from a network drive for example, my CPU usage skyrockets because a ton of kioworkers start generating a new thumbnail every time the file is modified, which is constantly. If I disable thumbnails for videos it doesn't happen.