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  1. Qt
  2. QTBUG-80760

When a OPC UA node is enabled for monitoring then the CPU usage will be significent

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    Details

    • Type: Bug
    • Status: Open
    • Priority: P2: Important
    • Resolution: Unresolved
    • Affects Version/s: 5.13.2
    • Fix Version/s: None
    • Component/s: OpcUA

      Description

      When a OPC UA node is enabled for monitoring then the CPU usage will be significent. This is due to the sendPublishRequest() function which appears to continually fire a zero based single-shot timer, as the timeout signal of the timer refires the same slot until m_sendPublishRequests is set to false which happens in modifyPublishRequests().

      Changing the interval to 100ms is enough to circumvent the issue at least.

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            Assignee:
            fmeerkoetter Frank Meerkötter
            Reporter:
            andysh Andy Shaw
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              Dates

              Created:
              Updated:

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