Bug 504859 - Process search field lags a little bit when clearing filter text with Ctrl+Backspace
Summary: Process search field lags a little bit when clearing filter text with Ctrl+Ba...
Status: CONFIRMED
Alias: None
Product: plasma-systemmonitor
Classification: Applications
Component: general (other bugs)
Version First Reported In: 6.3.0
Platform: Other Linux
: LO minor
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords: usability
Depends on:
Blocks:
 
Reported: 2025-05-27 12:57 UTC by Alexander Potashev
Modified: 2025-05-29 22:56 UTC (History)
3 users (show)

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Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


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Description Alexander Potashev 2025-05-27 12:57:26 UTC
SUMMARY
Process search box lags when relaxing filter, i.e. when many processes need to reappear in the list.

STEPS TO REPRODUCE
1. Open systemmonitor -> Processes tab
2. Enter "aaaaaaa" in the search box
3. Press Ctrl+Backspace

OBSERVED RESULT
The UI freezes for ~500ms (very noticeable), then search box is cleared and the new list of processes appears.

EXPECTED RESULT
The search box should be cleared instantly.

SOFTWARE/OS VERSIONS
Operating System: gLinux Rodete
KDE Plasma Version: 6.3.0
KDE Frameworks Version: 6.11.0
Qt Version: 6.7.2
Kernel Version: 6.12.20-1rodete1-amd64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Xeon® W-2135 CPU @ 3.70GHz
Memory: 62.4 GiB of RAM
Graphics Processor: Quadro P1000/PCIe/SSE2

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2025-05-27 21:10:32 UTC
I can reproduce a more minor version of this; on my machine, the first time I do it, it;s maybe 250ms. On subsequent attempts it's much faster though, practically instant.
Comment 2 Alexander Potashev 2025-05-29 22:56:07 UTC
> On subsequent attempts it's much faster

It's still noticeably slow here on subsequent attempts.