https://bugs.kde.org/show_bug.cgi?id=440951
Bug ID: 440951
Summary: Scrolling and browsing brush preset spikes CPU core
usage and lag occurs making it hard to use the docker
Product: krita
Version: nightly build (please specify the git hash!)
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Dockers
Assignee: krita-bugs-n...@kde.org
Reporter: ra...@raghukamath.com
Target Milestone: ---
SUMMARY
In the latest nightly build (git e89467b) appimage scrolling the brush preset
docker is lagging. scroll operation spikes 1 cpu core to 100 and if the docker
is undocked it even becomes difficult to move it quickly. Dropdown appears very
late. Brush selection is done very late.
I also see as we scroll the status bar switches to shows the brush preset name
only hiding all other text in the place of currently active brush name.
STEPS TO REPRODUCE
1. Open the nightly build of 14 august 2021 and open the brush preset docker.
2. Scroll through the list of thumbnails, undock the docker and open the
dropdown etc
I noticed the lag is slightly less when using the list view.
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