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  1. Qt
  2. QTBUG-80852

qchartview performance

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    Details

    • Type: Suggestion
    • Status: Reported
    • Priority: Not Evaluated
    • Resolution: Unresolved
    • Affects Version/s: 5.12.6
    • Fix Version/s: None
    • Component/s: Charts
    • Labels:
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      Description

      qchartview repaints the chart every time there is an update.  This is not the efficient way to handle a chart with large amount of dynamic data that is generated at very high rate.   The speed slows down significantly when data set gets large.

      Even though I am quite sure, it looks like qchartview always redraws the entire chart instead of just the region that is visible.  I might be wrong.

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            • Assignee:
              e0348803 Miikka Heikkinen
              Reporter:
              streamer Yuan Song
            • Votes:
              1 Vote for this issue
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              Dates

              • Created:
                Updated:

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