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  1. Qt
  2. QTBUG-55842

XCB: X11 forwarding much slower compared to Qt 4

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      Attached is slightly modified qtperf4, just press the Run button.

      On my setup Qt 5 is almost twice slower with normal settings (107.84s vs 59.15s). Qt 4 also does a lot better when using "native" render system, which approaches near local speed in this test in my environment (1.5s Qt5 local vs 1.7s Qt 4 remote+native).

        1. qtbug55842.tar.gz
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            paeglis Gatis Paeglis
            poikelin Joni Poikelin
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