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Type: Bug
Resolution: Unresolved
Priority: P1: Critical
Fix Version/s: 6.10
Affects Version/s: 6.10, 6.11
Component/s: QML: Declarative and Javascript Engine
Labels:
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The quick.item/delegates_item_childrenRect.qml QmlBench benchmark has regressed during the month of February 2025.

https://testresults.qt.io/grafana/d/5ei7yHViz/qmlbench-daily-results?orgId=1&from=2024-08-31T22:00:00.000Z&to=2025-08-31T22:00:00.000Z&timezone=browser&var-suite=$__all&var-benchmark=multiview.qml&var-benchmark=modelaccess_size.qml&var-benchmark=modelaccess_rect.qml&var-benchmark=modelaccess_point.qml&var-benchmark=modelaccess_datetime.qml&var-benchmark=modelaccess_color.qml&var-benchmark=delegates_tumbler.qml&var-benchmark=delegates_textfield.qml&var-benchmark=delegates_textarea.qml&var-benchmark=delegates_switch.qml&var-benchmark=delegates_spinbox.qml&var-benchmark=delegates_slider.qml&var-benchmark=delegates_scrollview.qml&var-benchmark=delegates_scrollbar.qml&var-benchmark=delegates_rowlayout.qml&var-benchmark=delegates_qobject.qml&var-benchmark=delegates_menuitem.qml&var-benchmark=delegates_menu_custom.qml&var-benchmark=delegates_itemdelegate.qml&var-benchmark=delegates_item_childrenRect.qml&var-benchmark=date_getYear.qml&var-branch=dev&var-branch=6.9&var-hardwareId=Ubuntu_22.04_Foucault_x64&var-CoV=hide&var-graphicsApi=opengl&viewPanel=panel-20-clone-19

Bisecting idicates that this was caused by https://codereview.qt-project.org/c/qt/qtdeclarative/+/611941

is required for

QTBUG-140339 Performance regression on multiple benchmarks

Reported

relates to

QTBUG-139687 [REG 6.6 → 6.8] Broken list property update when the setter delays modification

Closed

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Assignee:: Ulf Hermann

Reporter:: Olivier De Cannière

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Created:: 5 days ago 12:18

Updated:: 4 days ago 21:39

There are no open Gerrit changes