Details
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Bug
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Resolution: Fixed
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P2: Important
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None
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5.12
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None
Description
It appears that commit 3b7db8ac90ba36949cb4168f07cc8dace47758a7 ( https://codereview.qt-project.org/#/c/257497/ ) has caused a serious performance regression in gradient painting.
This is visible in QMLBench tests for Creation/Layouts.<< Performance graph>>
Benchmark performance sees significant regression on all platforms:
85% on windows
50% on Mac
~10% Linux
10-20% Linux on ARM