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  1. Qt
  2. QTBUG-39080

High CPU usage after Broadcasting over a QUdpSocket

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 5.3.0 RC1, 5.3.0
    • Network
    • None
    • Windows 8.1 Update 1 x64, Desktop Qt5.3.0 MinGW 32bit.
      Mac OSX 10.9.3, Desktop Qt5.3.0 clang 64bit.
    • macOS

      After broadcasting a string just once over a QUdpSocket, the main thread of my Qt application is using 100% of one of my CPU core until I stop the program.

      This bug is NOT present in Qt 5.2.1 and can be easily reproduced with the following attached project.

      EDIT: This bug is present on Mac OSX and Windows so I think it's not platform related.

        1. udp.20140519.zip
          0.5 kB
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            richmoore Richard Moore (qtnetwork)
            julien1619 Julien Blatecky
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              Created:
              Updated:

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