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  1. Qt
  2. QTBUG-113527

tst_bench_qmetatype: Significant slowdown observed

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    • Icon: Task Task
    • Resolution: Unresolved
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    • Core: Object Model
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      Benchmark results were obtained by running the test on different versions of qtbase:

      • v5.15.10-lts-lgpl
      • v6.6.0-rc1

      Steps to reproduce the results

      v5.15.10-lts-lgpl
      git clone "ssh://codereview.qt-project.org/qt/qtbase"
cd qtbase
git checkout v5.15.10-lts-lgpl
mkdir build
cd build
../configure -release -commercial -confirm-license -make tests
make -j 4
LD_LIBRARY_PATH=$PWD/lib corelib/kernel/qmetatype/tst_bench_qmetatype -minimumtotal 4000
      v6.6.0-rc1
      git clone "ssh://codereview.qt-project.org/qt/qtbase"
cd qtbase
git checkout v6.6.0-rc1
mkdir build
cd build
../configure -release -- -DQT_BUILD_BENCHMARKS=ON
cmake --build . --target tst_bench_qmetatype
corelib/kernel/qmetatype/tst_bench_qmetatype -minimumtotal 4000

        1.
        		 typeNameBuiltin was 2.1 times slower Sub-task Reported Volker Hilsheimer
        2.
        		 typeNameNotRegistered was 21.2 times slower Sub-task Reported Volker Hilsheimer
        3.
        		 constructInPlaceCopyStaticLess was 3.3 times slower Sub-task Reported Volker Hilsheimer
        For Gerrit Dashboard: QTBUG-113527
        # Subject Branch Project Status CR V
        477308,29 QML: Improve the JS-to-JS type check when enforcing signatures dev qt/qtdeclarative Status: MERGED +2 0
        486912,11 QML: Revert the default for enforcing function signatures dev qt/qtdeclarative Status: MERGED +2 0

            thiago Thiago Macieira
            qtgerritbot Gerrit Bot
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              Created:
              Updated:

                There are no open Gerrit changes