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  1. Qt
  2. QTBUG-39080

High CPU usage after Broadcasting over a QUdpSocket

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Details

    • Bug
    • Resolution: Unresolved
    • 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

    Description

      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.

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        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-41934 High CPU usage of QUdpSocket after received ICMP TTL message

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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          Activity

            People

              richmoore Richard Moore (qtnetwork)
              julien1619 Julien Blatecky
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              4 Vote for this issue
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              8 Start watching this issue

              Dates

                Created:
                Updated:

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