Bug 490178

Summary:	WindowHeap-based effects are slightly slower to activate than previous versions
Product:	[Plasma] kwin	Reporter:	Reiner Schmitts <faf04348>
Component:	effects-window-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	minor	CC:	al.neodim, bugseforuns, faf04348, fanzhuyifan, kde, kwin-bugs-null, linx.system.adm, makosol, nate, notmart, phyllon, polardelphine, postix, tjkrobertson, unblended_icing552, vlad.zahorodnii, wbqq
Priority:	NOR	Keywords:	regression
Version First Reported In:	6.1.2
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=479250
Latest Commit:		Version Fixed/Implemented In:	6.3.0
Sentry Crash Report:
Bug Depends on:	455780
Bug Blocks:

Description Reiner Schmitts 2024-07-12 14:35:13 UTC

+++ This bug was initially created as a clone of Bug #455780 +++


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SUMMARY


STEPS TO REPRODUCE
1. Run Version 6.1.2 of Kwin


OBSERVED RESULT
Present Windows is trigged with a noticable delay (meta+w) or (ctrl+F10)

EXPECTED RESULT
Present Windows is triggered instantly or triggered at the specified delay which can be set in "Systemsettings ->General Behaviour -> Animation Speed"


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 6.9.8.arch1-1
(available in About System)
KDE Plasma Version: 6.1.2-1
KDE Frameworks Version: 
Qt Version: 6

ADDITIONAL INFORMATION (old similar bug):
SUMMARY
The new QML effects like overview, present-windows, desktop grid are noticeably slower to activate.

STEPS TO REPRODUCE
1. Trigger present-windows

OBSERVED RESULT
The effect activates slower (there is a delay between pressing the button to the effect displaying.)

EXPECTED RESULT
The effect should trigger instantly

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5
Kernel Version: 5.18.5-zen1-1-zen (64-bit)
Graphics Platform: Wayland

Comment 1 Nate Graham 2024-07-13 23:38:01 UTC

Was this working okay in 6.0 and regressed in 6.1.2?

Comment 2 David Edmundson 2024-07-17 13:17:22 UTC


*** This bug has been marked as a duplicate of bug 469446 ***

Comment 3 Reiner Schmitts 2024-07-17 16:02:40 UTC

(In reply to Nate Graham from comment #1)
> Was this working okay in 6.0 and regressed in 6.1.2?

Yes! I could observe this in both of my arch based KDE plasma systems that I recently both updated one after another.

Comment 4 Nate Graham 2024-11-27 21:05:13 UTC

After more performance work, anything left here is now attributable to Bug 479250, which is tracked separately. Fixing that should finish it all off.