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  1. Qt
  2. QTBUG-102599

Slow painting of svg file

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    • 8f5075067 (dev)

      1. Build the attached project.
        Normal release build, no sanitizers needed.
      2. Run the resulting binary, passing in the attached input file: 
        ./report 46709.svg

        The process will run for a notably long time. Here it occupies a CPU core entirely for like 30 to 50 seconds.

      Google's oss-fuzz found this as issue 46709. They will publish the details 90 days from now, the latest.

        1. main.cpp
          0.4 kB
          Robert Löhning
        2. report.pro
          0.0 kB
          Robert Löhning
        3. 46709.svg
          3 kB
          Robert Löhning
        4. report.html
          1.80 MB
          Robert Löhning
        For Gerrit Dashboard: QTBUG-102599
        # Subject Branch Project Status CR V
        465010,2 fuzzing: Add svg file which revealed performance regression dev qt/qtqa Status: MERGED +2 0

            qt.team.graphics.and.multimedia Qt Graphics Team
            rlohning Robert Löhning
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes